True Or False The Index -1 Identifies The Last Character Of A String.
Answers
Note that it is TRUE to state that the Index -1 Identifies the last character of a String.
What is a string in programming?A string is generally a sequence of characters in computer programming, either as a literal constant or as some form of variable. The latter can have its components modified and its length changed, or it can be set (after creation).
A string's first character corresponds to index 0, and its last character relates to index (length of string)-1. The amount of characters in a string, including spaces, punctuation, and control characters, is referred to as its length.
Learn more about index in programming:
https://brainly.com/question/14895144
#SPJ1
Related Questions
In the case of an automobile electric system, the chassis of the vehicle is the ___________ side of the circuit.
Answers
Answer:
ground
Explanation:
In modern cars, the chassis is connected to the negative terminal of the battery, and provides the "ground" or "return" for the circuit.
Answer:
ground
Explanation:
What is the link between fossil fuel use and flowers blooming earlier in the spring season
Answers
Answer:
a warmer earth due to fossil fuel emissions has milder winters and earlier springs
Explanation:
fossil fuels cause global warming which would make the winters less cold and spring and summer hotter.
Visit a fire station and obtain information about flow rates through hoses and discharge diameters. Using this information, calculate the impulse force to which the firefighters are subjected when holding a fire hose.
Answers
Water flowing through a flexible fire hose is turbulent flow and consists of a flow field of eddies.
What is the explanation?An eddy-filled flow field characterizes the turbulent flow of water via a flexible fire hose. The pressure against the pipe wall is affected by the turbulent kinetic energy of these eddies because it is shifted from large eddies into smaller eddies. Accelerometers are sensitive to the types of pipe vibrations that are caused by pressure changes.Piezoelectric pressure transducers and piezoelectric accelerometers are two categories of sensors that have been utilized in the literature to measure fluid flow in rigid pipes. Clinch employed a collection of flush-mounted piezoelectric pressure transducers along a water pipe's inner surface to monitor pressure changes brought on by turbulent water flow [11]. The variations in flow rate and pressure were found to be related.
To learn more about fire hose refer to:
https://brainly.com/question/22985932
#SPJ4
Which option identifies the section of the project charter represented in the following scenario?
For the past five years, students at New School have been in desperate need of a playground. The closest playground is a mile away, at Safe
Park. Our project is to design a playground for the students and to find funding in the community to support it.
O executive summary
O constraints
O project objectives
O project development cycle
Answers
Answer:
Executive Summary
Explanation:
It is Executive Summary because I used process of elimination. Constraints are set backs. Project objectives are the goals that you want to achieve. Project development cycle are basically the steps that will be used.
what tag can be used to define the starting point for relative paths?
Answers
The `<base>` tag can be used to definethe starting point for relative paths in HTML.
How is this so?It is placed within the `<head>` section of an HTML document and includes the `href` attribute that specifies the base URL for all relative URLs within the document.
By setting the base URL,you can establish a common reference point for resolving relative paths to external resources such as stylesheets, scripts, and images.
Thus,it is correct to state that `<base>` tag can be used to define the starting point for relative paths in HTML.
Learn more about HTML at:
https://brainly.com/question/4056554
#SPJ1
The following is a series of questions pertaining to the NSPE Code of Ethics. Please indicate whether the statement are true or false. These questions are provided by the NSPE.
Engineers in public service as members, advisors or employees of a governmental or quasi-governmental body or department may participate in decisions with respect to services solicited or provided by them or their organizations in private or public engineering practice as long as such decisions do not involve technical engineering matters for which they do not posses professional competence
Answers
Geomorphic
Explanation:
Because it's pretty easy if you think of the right ways of geomorphic ways to process the equation
Exercise 2.10.6: Circle Area
Here is a Circle class.
Implement getArea and getCircumference by using methods from the Math class
————————————————————————————————————————————————————————
public class CircleTester
{
public static void main(String[] args)
{
Circle cup = new Circle(5);
System.out.println("Area of a circle with radius 5: " + cup.getArea());
System.out.println("Circumference of a circle with radius 5: " + cup.getCircumference());
Circle hat = new Circle(12);
System.out.println("nArea of a circle with radius 12: " + hat.getArea());
System.out.println("Circumference of a circle with radius 12: " + hat.getCircumference());
}
}
public class Circle
{
private double radius;
public Circle(double theRadius)
{
radius = theRadius;
}
// Implement getArea using
// Math.PI and
// Math.pow
// Area = pi * r^2
public double getArea()
{
}
// Implement getCircumference using
// Math.PI
// Circumference = 2 * PI * r
public double getCircumference()
{
}
}
Answers
CODE
public double getArea(){
return Math.PI * Math.pow(radius, 2);
}
public double getCircumference(){
return 2 * Math.PI * radius;
}
Hence , it will return the power and the radius as output.
Radius: What is it?
Any of the line segments from a circle's center to its perimeter are considered its radius (plural: radii), in more recent use, its length is also included. The word "diameter" is derived from Latin and means "ray" as well as "the spoke of a chariot wheel." Radii (from of the Latin plural) or the typical English plural radiuses both can be employed as the plural form of the word radius. R or r are the most used acronyms and names for the radii mathematics variable.
To know more about radius
https://brainly.com/question/13449316
#SPJ4
State any 2 reasons for gauging streams
Answers
Answer: gage height, or stage, discharge, a stage-discharge rating curve.
Explanation: I named 4 of them.
on which type of roof are firefighters likely to be at risk of becoming trapped in the void space and falling through the original roof below?
Answers
Firefighters are likely to be at risk of becoming trapped in the void space and falling through the original roof if they are working on a type of roof known as a "flat roof."
Flat roofs are typically flat or nearly flat structures that are used on commercial and industrial buildings. They are built with a low slope and often have limited access points, making it difficult for firefighters to escape if they fall into a void space between the roof deck and the insulation layer.
Additionally, flat roofs are often made of lightweight materials such as asphalt or rubber, which can become weak and brittle during a fire, increasing the risk of collapse. To minimize the risk of firefighter injury, it is important to ensure that firefighters are trained and equipped to work safely on flat roofs, and that they have access to appropriate personal protective equipment and rescue equipment.
You can learn more about type of roof at
https://brainly.com/question/29439770
#SPJ4
rack is made from roll-formed sheet steel and has the cross section. The dimensions are indicated at the center thickness of each segment. Suppose that L1 mm and L2 85.0 mm. (Higure 1) Figure 1 of 1 30 mm 15 mm 15 mm Part A Determine the location (2, y) of the centroid of the cross section. Express your answers using three significant figures separated by a comma 24.34, 44.387 a, y Submit My Answers Give U Incorrect, Try Again, 4 attempts remaining Provide Feedback
Answers
You will obtain the value by resolving this. 40.6 million Toby meters. As a result, this is part. this issue. The one and only A bouncer.
This submission off was divided by this submission off by l unwto. No replacement for you will complete the task. 7 25 in tow. Jiro tagging along. Cryptic 7.5 in tow. 15 15 is followed by 30 30. 30 45 in tow. Nt Divide 15 Indo 37.5 by the overall length. 50, but 50 is 50. However, 50 less 30 unless and until 50 is less. This is all in millimeters. So I send it out with no solution. The mass murder system along XX will be 20.4 mm. Similar to how we can battle with our ex-partners, El's bedroom in Dubai will be our submission. No substitute for it was available after submission. You'll complete it. 50 Judo moves. Don't eat five into fifty or fifteen into fifty.
Avoid eating five to fifty. Forte in tow, 15 into 50 into 30 nt, 30 Bless 17 being converted into zero by the daughter lens 15 less 15 more 15 more 30 more a d So on. You will obtain the value by resolving this. 40.6 million Toby meters. As a result, this is part. this issue. The one and only A bouncer.
To know more about bouncer click here:
https://brainly.com/question/14644520
#SPJ4
Q4 a.
Binary tree computations always involves traversal of the tree. With your
knowledge in each type of traversal.
i. Perform and write the algorithm of all the types of traversal methods on a
binary tree. (AP)10 marks
ii. Perform a space and time complexity of each traversal type been
implemented in i. above. (AN)5 marks
3b. Using C++ or java create a square matrix A[][] of order (M*M) where ‘M’ is
the number of rows and columns such that M must be greater than 2 and less
than 20. Allow the user to input integers in the matrix. Display appropriate error
message for an invalid input.
Perform the following task on the matrix data
i. Display the input matrix from the user.
ii. Create a mirror of the inputted matrix
iii. Display the mirror image matrix (AP) 10 marks
For instance:
Example 1.
Where M=3
OUTPUT: Original Matrix
4 16 12
8 2 14
6 1 3
OUTPUT: ORIGINAL MATRIX
4 16 12
Example 2.
INPUT: M =22
OUTPUT: SIZE
Answers
The Java program that accepts a matrix of M × N order and then interchanges diagonals of the matrix is given below:
Steps: 1. We can only interchange diagonals for a square matrix.2. Therefore, we would have to create a square matrix of size [M × M].3. We would check whether the matrix is a square matrix or not. If the matrix is square then follow step 3 else terminate the program.4. Apply logic for interchange diagonal of the matrix some logic is given below.Java Code// Java Program to Accept a Matrix of Order M x N &
// Interchange the Diagonals
import java.util.Scanner;
public class InterchangeDiagonals {
public static void main(String[] args)
{
// declare variable
int m, n, i, j, temp;
// create a object of scanner class
Scanner sc = new Scanner(System.in);
System.out.print("Enter number of rows ");
// take number of rows
m = sc.nextInt();
System.out.print("Enter number of columns ");
// take number of columns
n = sc.nextInt();
// declare a mxn order array
int a[][] = new int[m][n];
// if block it's execute when m is equals to n
if (m == n) {
System.out.println(
"Enter all the values of matrix ");
// take the matrix inputs
for (i = 0; i < m; i++) {
for (j = 0; j < n; j++) {
a[i][j] = sc.nextInt();
}
}
System.out.println("original Matrix:");
// print the original matrix
for (i = 0; i < m; i++) {
for (j = 0; j < n; j++) {
System.out.print(a[i][j] + " ");
}
System.out.println("");
}
// perform interchange
for (j = 0; j < m; j++) {
temp = a[j][j];
a[j][j] = a[j][n - 1 - j];
a[j][n - 1 - j] = temp;
}
System.out.println(
" after interchanging diagonals of matrix ");
// print interchanged matrix
for (i = 0; i < m; i++) {
for (j = 0; j < n; j++) {
System.out.print(a[i][j] + " ");
}
System.out.println("");
}
}
// else block it's only execute when m is not equals
// to n
else {
System.out.println("Rows not equal to columns");
}
}
}
Read more about java programming here:
https://brainly.com/question/18554491
#SPJ1
which of the three motives for holding foreign exchange are applicable tp each of the following? 1. a tourist 2. a bond trader 3. a portfolio manager 4. a manufacturer
Answers
The three motives for holding foreign exchange, namely:
A portfolio.A bond trader.A manufacturer.Foreign exchange can be described as exchanging the value of money of one country for another at prevailing exchange rates.
A tourist keeps foreign currency to conduct in transactions.A bond trader keeps foreign currency to take advantage of interest arbitrage chance.A portfolio manager keeps foreign currency to take benefit of investment chance (transactions), interest arbitrage chance, and speculative chances.A manufacturer keeps foreign currency to conduct in transactions.Learn more about Foreign exchange here, https://brainly.com/question/14231622
#SPJ4
3. If nothing can ever be at absolute zero, why does the concept exist?
Answers
The absolute zero in temperature refers to the minimal possible temperature. It is the temperature at which the molecules of a system stop moving, so it is a really useful reference point.
Why absolute zero can't be reached?It would mean that we need to remove all the energy from a system, but to do this we need to interact with the system in some way, and by interacting with it we give it "some" energy.
Actually, from a quantum mechanical point of view, the absolute zero has a residual energy (so it is not actually zero) and it is called the "zero point". This happens because it must meet Heisenberg's uncertainty principle.
So yes, the absolute zero can't be reached, but there are really good approximations (At the moment there is a difference of about 150 nanokelvins between the absolute zero and the smallest temperature reached). Also, there are a lot of investigations near the absolute zero, like people that try to reach it or people that just need to work with really low temperatures, like in type I superconductors.
So, concluding, why does the concept exist?
Because it is a reference point.It is the theoretical temperature at which the molecules stop moving, defining this as the minimum possible temperature.If you want to learn more about the absolute zero, you can read:
https://brainly.com/question/3795971
0. 33 A group of small appliances on a 60 Hz system requires 20kVA at 0. 85pf lagging when operated at 125 V (rms). The impedance of the feeder supplying the appliances is 0. 01+j0. 08Ω. The voltage at the load end of the feeder is 125 V (rms). A) What is the rms magnitude of the voltage at the source end of the feeder? b) What is the average power loss in the feeder? c) What size capacitor (in microfarads) across the load end of the feeder is needed to improve the load power factor to unity? d) After the capacitor is installed, what is the rms magnitude of the voltage at the source end of the feeder if the load voltage is maintained at 125 V (rms)? e) What is the average power loss in the feeder for (d) ? ∣∣Vs∣∣=133. 48 V (rms) Pfeeder =256 W C=1788μF ∣∣Vs∣∣=126. 83 V (rms) Pfeeder =185. 0 W
Answers
Vs = 133.48V (rms). Pfeeder = 353.85 W. C = 1788 μF. Vs = 125 V (rms). The average power loss of the Pfeeder = 185.0 W
What is the average power loss in the feedera) To discover the rms magnitude of the voltage at the source conclusion of the feeder, we are able to utilize the equation:
|Vs| = |Vload| + Iload * Zfeeder
Given that |Vload| = 125 V (rms) and Zfeeder = 0.01 + j0.08 Ω, we will calculate Iload as follows:
Iload = Sload / |Vload|
= (20 kVA / 0.85) / 125
= 188.24 A
Presently we will substitute the values into the equation:
|Vs| = 125 + (188.24 * (0.01 + j0.08))
= 133.48 V (rms)
Hence, the rms magnitude of the voltage at the source conclusion of the feeder is 133.48 V (rms).
b) The average power loss within the feeder can be calculated utilizing the equation:
\(Pfeeder = |Iload|^{2} * Re(Zfeeder)\)
Substituting the values, we have:
\(Pfeeder = |188.24|^{2} * 0.01\)
= 353.85 W
Subsequently, the average power loss within the feeder is 353.85 W.
c) To move forward the load power factor to unity, a capacitor can be associated with the stack conclusion of the feeder. The measure of the capacitor can be calculated utilizing the equation:
\(C = Q / (2 * π * f * Vload^{2} * (1 - cos(θ)))\)
Given that the load power calculation is slacking (0.85 pf slacking), we will calculate the point θ as:
θ = arccos(0.85)
= 30.96 degrees
Substituting the values, we have:
\(C = (Sload * sin(θ)) / (2 * π * f * Vload^{2} * (1 - cos(θ)))\\= (20 kVA * sin(30.96 degrees)) / (2 * π * 60 Hz * (125^{2}) * (1 - cos(30.96 degrees)))\\= 1788 μF\)
Subsequently, a capacitor of 1788 μF over the stack conclusion of the feeder is required to move forward the stack control calculate to solidarity.
d) After the capacitor is introduced, the voltage at the stack conclusion of the feeder remains at 125 V (rms). Subsequently, the rms magnitude of the voltage at the source conclusion of the feeder will be the same as the voltage at the stack conclusion, which is 125 V (rms).
e) With the capacitor introduced, the power loss within the feeder can be calculated utilizing the same equation as in portion b:
\(Pfeeder = |Iload|^{2} * Re(Zfeeder)\)
Substituting the values, we have:
\(Pfeeder = |188.24|^{2} * 0.01\)
= 185.0 W
Hence, the average power loss within the feeder, after the capacitor is introduced, is 185.0 W.
Learn more about power here:
https://brainly.com/question/11569624
#SPJ1
Technician A says that the refractometer reading is determined at the point of the scale where the dark and light areas meet. Technician B says that the reading is determined by where a dial points on a scale. Who is correct
Answers
Answer:
Technician B says that the reading is determined by where a dial points on a scale.
Explanation:
A refractometer is a devise used by scientists to gauge a liquids index of refraction.
The refractive index of a liquid is the ratio of light velocity of a specific wavelength in air to its velocity in the substance in evaluation.
The steps of reading a measurement are;
point the front of the refractometer towards the light source and view into the eyepieceYou will see the line outlined at a different point on the refractometer's internal indexRead the point on the index at which the line falls
if the aircraft's transponder fails during flight within class b airspace,
Answers
If the aircraft's transponder fails during flight within Class B airspace, the pilot should immediately notify air traffic control (ATC) using the appropriate radio frequency, follow any instructions given by ATC, and adhere to established procedures for aircraft without a functioning transponder.
What should a pilot do if the transponder on their aircraft malfunctions while flying within Class B airspace?In the event of a transponder failure while in Class B airspace, it is crucial for the pilot to take immediate action. The first step is to promptly notify air traffic control (ATC) of the situation using the designated radio frequency. This communication ensures that ATC is aware of the transponder failure and can provide necessary guidance and instructions. The pilot should then comply with any directives given by ATC, which may include specific altitude or heading instructions.
Additionally, the pilot must adhere to established procedures for aircraft operating without a functioning transponder within Class B airspace. These procedures typically involve maintaining vigilance, flying predictable patterns, and using visual signals as necessary to communicate with other aircraft.
Learn more about Air traffic control
brainly.com/question/2106452
#SPJ11
A complete circuit is left on for several minutes causing the connecting copper wire to become hot
Answers
As the temperature of wire increases, the electrical resistance of wire increases. The correct option is B.
What is resistance?The resistance is the property of material which opposes the current through the wire to pass.
A complete circuit is left on for several minutes causing the connecting copper wire to become hot.
The resistance is directly proportional to the temperature. So, when temperature is increased, the resistance of a wire also increases. The current will have more opposition to flow.
Thus, the correct option is B.
Learn more about resistance.
https://brainly.com/question/11431009
#SPJ4
The flow between two infinitely flat parallel plates displays a parabolic profile, and is called plane Poiseulle flow.
a. True
b. False
Answers
Answer:
a. True
Explanation:
The study of fluids in a state of rest or in motion and the forces involved in it is called fluid mechanics. Fluid mechanics has a wide range of applications in the field of mechanical engineering as well as civil engineering.
When we study the flow of fluid between any two flat plates that is indefinitely flat and is parallel, the flow of the fluid is known as plane Poiseulle flow. The profile of a plane Poiseulle flow is parabolic.
The velocity profile of a plane Poiseulle flow is :
\($\frac{u(y)}{U_{max}}=1-\left(\frac{2y}{h}\right)^2$\)
Thus the answer is TRUE.
Consider a 3-km2 urban catchment. The main channel has a slope of 0.9% and a Manning n of 0.10. The catchment is 50% impervious. The distance along the main channel from the catchment boundary to the outlet is 1100 m. The urban catchment has an average curve number of 60. Determine the peak flow (m3 /s) of the NRCS unit hydrograph for a 20-min rainfall excess.
Answers
Answer:
The right answer is "5.105×10⁸ m³/sec".
Explanation:
The given values are:
Catchment area,
A = 3 km²
Length to watershed,
L = 1100 m
Average watershed slope,
S = 0.9% i.e., 0.009
Curve number,
CN = 60
Rainfall duration,
D = 20 min
Let,
Time form beginning of the rainfall will be "\(t_p\)".Lag time will be "\(t_1\)".Now,
⇒ \(t_1=\frac{L^{0.8}\times (\frac{1000}{CN} -9)^{0.7}}{19000S^{0.5}}\)
On substituting the values, we get
⇒ \(t_1=\frac{1100^{0.8}\times (\frac{1000}{60} -9)^{0.7}}{19000\times 0.009^{0.5}}\)
⇒ \(=0.625 \ hours\)
then,
⇒ \(T_p=\frac{D}{2}+t_1\)
⇒ \(=\frac{0.33}{2}+0.625\)
⇒ \(=\frac{0.33+1.25}{2}\)
⇒ \(=\frac{1.58}{2}\)
⇒ \(=0.79 \ hr\)
hence,
The peak flow will be:
⇒ \(Q_p=\frac{484A}{t_p}\)
⇒ \(=\frac{484\times 3}{0.79}\)
⇒ \(=\frac{1452}{0.79}\)
⇒ \(=1837.97 \ km^3/hr\)
or,
⇒ \(=5.105\times 10^8 \ m^3/sec\)
Two students are discussing weathering and erosion factors. Leah says that both weathering and erosion involve wind, water, and ice. Justin says that only weathering involves ice, and that erosion involves plants and animals. Who is correct?
A. Justin, because plants cause erosion too.
B. Justin, because erosion does not involve ice.
C. Leah, because she forgot to mention plants and animals.
D. Leah, because glaciers are ice that cause erosion too.
Answers
Answer: Justin is false and it is both bottom because plants and animals are helpless to erosion and we cause it by deforestation and weather does too
Explanation:
Justin, because plants cause erosion too factors. This was the statement are the correct. Thus, option (a) is correct.
What is erosion?The geological process through which earthen elements are worn down and transferred by wind and water or water is known as erosion. The migration of nanoparticles away from their origins is referred to as erosion. Erosion is the loss of dirt, rock, or dissolved substances by surface processes.
According to the two students are the different in the studies. There was the based on the Leah are the said on the different in the concept and the Justin said into the different in the concept are the perception of the topic are the different. Justin was the correct because plants are the cause of erosion too factors.
As a result, the Justin, because plants cause erosion too factors. Therefore., option (a) is correct.
Learn more about on erosion, here:
https://brainly.com/question/3852201
#SPJ2
A rigid container equipped with a stirring device contains 3.5 kg of motor oil. Determine the rate of specific energy increase when heat is transferred to the oil at a rate of 1 W, and 1.5 W of power is applied to the stirring device.
Answers
Given a rigid container with 3.5 kg of motor oil, we need to determine the rate of specific energy increase when heat is transferred to the oil at a rate of 1 W, and 1.5 W of power is applied to the stirring device.
The rate of specific energy increase can be calculated by considering the rate of heat transfer and the rate of work done by the stirring device.
The rate of specific energy increase (dU/dt) is given by the sum of the rate of heat transfer (Qdot) and the rate of work done (Wdot) by the stirring device. Mathematically, it can be expressed as:
dU/dt = Qdot + Wdot
In this case, the rate of heat transfer is given as 1 W, and the rate of work done by the stirring device is 1.5 W. Substituting these values into the equation, we have:
dU/dt = 1 W + 1.5 W = 2.5 W
Therefore, the rate of specific energy increase for the motor oil is 2.5 W. This means that the energy content of the oil is increasing at a rate of 2.5 joules per second (Watt).
It's important to note that the specific energy increase represents the rate of change of energy per unit mass of the motor oil. In this case, the specific energy increase is calculated based on the total mass of the oil in the container (3.5 kg).
Learn more about heat transfer here:
https://brainly.com/question/13433948
#SPJ11
Question 14 The specific internal energy and enthalpy of an ideal gas are each functions of temperature alone, but its specific entropy depends on two independent intensive properties. Not yet answered Select one: Marked out of 2.00 O True O False P Flag question
Answers
The specific internal energy and enthalpy of an ideal gas are each functions of temperature alone, but its specific entropy depends on two independent intensive properties.
True. The specific internal energy and enthalpy of an ideal gas are both functions of temperature alone because they only depend on the molecular motion and interactions of the gas particles. However, the specific entropy of an ideal gas depends on two independent intensive properties, such as temperature and pressure or temperature and volume. This is because entropy is a measure of the energy dispersal or randomness of a system, which can be influenced by multiple factors.
Learn more about ideal gas here
https://brainly.com/question/31463642?referrer=searchResults
#SPJ11
Special impact sockets and extensions are easily
identified because they are:
(A) chrome.
(B) aluminum.
(C) flat black
Durant la sto
(D) hard rubber.
les
Answers
Answer:
C
Explanation:
they are flat black
Biết op-amp có Vsat = 12V, R1=R2=R3=R4=R, dạng sóng điện áp Vi(t) được cho như
hình 2.16b
a. Tính V0 theo Vi, độ lợi áp AV
b. Vẽ lại dạng sóng điện áp V0(t) khi Vm= 3
8 V
c. Vẽ lại dạng sóng điện áp V0(t) khi Vm = 5V
Answers
Answer:
Hello bro
Explanation:
I think i can help you something but can you translate it on english plzz
4. Employees are not responsible for thelr own safety whlle at work.
A) O True
B) O False
Answers
The statement "Employees are not responsible for their own safety while at work" is false because Employees most certainly are responsible.
What is Occupational safety?A multidisciplinary discipline dealing with the safety, health, and welfare of individuals at work is known as occupational safety and health, often known as occupational health and safety, occupational health, or occupational safety.
An environment that is safe and healthy for workers may minimize injury and sickness expenses, lower levels of absenteeism, boost output and quality, and improve employee morale. In other words, safety benefits the business.
Thus, the statement "Employees are not responsible for their own safety while at work" is false because Employees most certainly are responsible.
Learn more about Occupational safety here:
https://brainly.com/question/27577742
#SPJ2
analog to digital conversion in digital electronics
Answers
9. Calculate the total resistance and current in a parallel cir-
cuit with three resistors of 4, 8, and 16 ohms, using any
one of the five methods (calculator suggested). What is
the total resistance and current?
a. 27 ohms (0.4 ampere)
b. 14 ohms (0.8 ampere)
c. 4 ohms (3.0 amperes)
d. 2.3 ohms (5.3 amperes)
Answers
Answer:
d. 2.3 ohms (5.3 amperes)
Explanation:
The calculator's 1/x key makes it convenient to calculate parallel resistance.
Req = 1/(1/4 +1/8 +1/16) = 1/(7/16) = 16/7 ≈ 2.3 ohms
This corresponds to answer choice D.
__
Additional comment
This problem statement does not tell the applied voltage. The answer choices suggest that it is 12 V. If so, the current is 12/(16/7) = 21/4 = 5.25 amperes.
all circuits in this assignment are one-loop circuits, so every part of each circuit receives the same current. The current may change from one question to the next, but within each question, only one current exists.
1. Load = Refrigerator its power range (100-250 W) Po (power chosen)= 185 W
2. initially, connect an ideal battery (no internal resistance) to your load, with an emf ℇ0 = 345 V. Sketch a circuit in which this ideal battery is connected to a load, label all parts, then calculate the load resistance R0 and the current I0 the battery delivers, if the load receives power P0.
3. now make the battery real, with an internal resistance r that's 16.4% of R0. then sketch the new circuit, label all parts, and finally calculate the circuit's current I, the voltage VL across the load, and the power PL delivered to the load, assuming the battery's emf is still ℇ0.
4. As you can see in Q3, with internal resistance, an emf of ℇ0 delivers PL < P0 to the load, so to get the desired power P0 to the load, you'll need a battery with an emf ℇ ℇ > 0. Sketch a new circuit showing a new battery with emf ℇ and (the same) internal resistance r connected to the load R0, which now receives power PL = P0. Then calculate the emf ℇ of the new battery.
5. The load is now getting the power P0 it's supposed to have, but how much of the battery's power is being wasted? To find out, calculate the total power Ptot the battery (emf) delivers, the power Pint used by the internal resistance, and then the percentage of the total power that just heats up the internal resistance. Check: most of the total battery power will still get to the load.
6. Your device has a knob that allows you to turn it up or down (make the light brighter or dimmer, the fan spin faster or slower, etc.) by directly changing the load resistance from R0 to a new value, R. R is 10-30% lower (R = R0 × 0.765). State your version, list your new R, then calculate the load power PL, assuming the device is still connected to the second battery (emf ℇ).
7. Did turning the resistance up or down (whichever was assigned to you) turn the device up (uses more power) or down (uses less power)? Answer with evidence (both resistance and power), but no further calculation.
Answers
The load resistance R0 is approximately 645.95 ohms, and the current I0 delivered by the ideal battery is approximately 0.536 A.
In the first step, we are given the power range of the refrigerator load (100-250 W) and the chosen power P0 of 185 W. Since the load is connected in a one-loop circuit, the current flowing through each part of the circuit remains the same.
In the second step, an ideal battery with no internal resistance is connected to the load. We need to calculate the load resistance R0 and the current I0 delivered by the battery. The power received by the load is given as P0 = 185 W.
To calculate R0, we can use the formula P0 = I0^2 * R0, where I0 is the current and R0 is the resistance. Rearranging the formula, we have R0 = P0 / I0^2. Plugging in the values, we get R0 = 185 / (0.536^2) ≈ 645.95 ohms.
For the current I0, we can use Ohm's Law, which states that I0 = ℇ0 / R0, where ℇ0 is the emf (electromotive force) of the battery. Given ℇ0 = 345 V and R0 ≈ 645.95 ohms, we can calculate I0 as I0 = 345 / 645.95 ≈ 0.536 A.
Learn more about Ohms
brainly.com/question/30266391
#SPJ11
the response of a damped single-degree-of-freedom system is given by
x(t)=.05×e^(-10t)+10.5×t×e^(-10t)m
determine the natural frequency, damping constant, initial displacement, and initial velocity of the syste
Answers
The natural frequency, ωn = √k/m
Damping constant, ζ = c/2m =0.5
Initial displacement, x(0) = 0.05 m
Initial velocity, v(0) = 10 m/s
The general equation of motion for an underdamped single degree of freedom system is given as:
x(t) = xe^-ζωnt sin (ωd t + Φ)
Here, The natural frequency of the system is given by ωn = √k/m
The damping constant of the system is given by ζ = c/2m
Given response of the system is given by:x(t) = 0.05 e^(-10t) + 10.5t e^(-10t) m
It is an underdamped system. So, the general equation of motion for an underdamped single degree of freedom system is given as:
x(t) = xe^-ζωnt sin (ωd t + Φ)
It can be observed that the natural frequency of the system is ωd = 10 rad/sec and damping ratio is ζ = 0.5.From the response, initial displacement can be calculated by putting t=0,x(t) = 0.05 e^(-10t) + 10.5t e^(-10t) m
So, x(0) = 0.05 x 1 = 0.05 m
And, initial velocity can be calculated by differentiating x(t) w.r.t t,
x(t) = 0.05 e^(-10t) + 10.5t e^(-10t) m
So, v(t) = dx(t)/dt= -0.5 e^-10t + 10.5 e^-10t - 10.5t x e^-10t
v(0) = -0.5 + 10.5 = 10 m/s
Hence, the natural frequency, ωn = √k/m, Damping constant, ζ = c/2m = 0.5, Initial displacement, x(0) = 0.05 m, Initial velocity, v(0) = 10 m/s.
To know more about damping ratio, visit the link : https://brainly.com/question/31018369
#SPJ11
I need a description of a train station. Urgent. Thanks a lot
Answers
Answer:
The entire place was dark and cold as the train whooshed by. This place was nothing like Platform 9 and 3/4. The rain was loud on the roof of the station, but you could still hear the faint noises of a violin. "20 pence for requests" read a sign from a man who's just trying to get by.
Explanation:
hope this helps:)