Answer:
RCC (Connexus Academy) Lesson L7,U7 Answers.
Explanation:
Q1:
Most methods of transportation rely on some sort of infrastructure to drive, steer, navigate, or direct at some point or another in a journey. Which category of transportation system is least reliant on infrastructure?
Answer: Maritime
Q2:
Which type of energy conversion occurs in a vehicle’s engine?
Answer: Chemical energy to mechanical energy.
Q3:
Which list shows terms from the most general to the most specific parts of a car?
Answer: System, subsystem, component
Q4(What is the purpose of the SAFETEA-LU act in designing roads?)
Answer: To reduce congestion on busy roadways
Q5: A local city needs to build new roads and a highway. They receive federal dollars to build this infrastructure.
What organization will help coordinate the planning process?
Answer:MPO
The correct option is D, The list shows terms from the most general to the most specific parts of a car are system, subsystem, and component.
A subsystem is a smaller and more specific component or part of a larger system. It is a self-contained unit that performs a specific function within the context of a larger system. For example, in a car, the braking system is a subsystem that is responsible for slowing down or stopping the vehicle. Similarly, the audio system is a subsystem that is responsible for producing sound within the car.
Subsystems are important because they allow complex systems to be broken down into manageable and understandable components. This makes it easier to design, analyze, and improve systems by isolating and addressing issues within individual subsystems. In addition, subsystems can often be designed, built, and tested independently of the larger system, which can save time and resources during the development process.
To know more about Subsystem refer to-
brainly.com/question/25030095
#SPJ4
An object of mass M on string is whirled with increasing speed in a horizontal circle_ as shown above. When the string breaks; the object has speed vo and the circular path has radius R and is height h above the ground. Neglect air friction. Determine the following; expressing all answers in terms of y Vo, and g. A) The time required for the object to hit the ground after the string breaks. B) The horizontal distance the object travels from the time the string breaks until it hits the ground: C) Determine the tension in the string just before the string breaks. Express your answer in terms of M Vo, and g.
The time required for the object to hit the ground after the string breaks, we can use the equation of motion in the vertical direction. Since the object is initially at height h above the ground and is in free fall.
The equation can be written as:
h = (1/2)gt^2
Solving for t:
t = sqrt((2h) / g)
So, the time required for the object to hit the ground after the string breaks is given by the square root of 2h divided by g.
The horizontal distance the object travels from the time the string breaks until it hits the ground, we can use the horizontal velocity of the object. The horizontal velocity remains constant since there is no horizontal force acting on the object.
The horizontal distance can be calculated using the equation:
d = v * t
where v is the horizontal velocity and t is the time calculated previously.
The tension in the string just before it breaks can be determined using the centripetal force required to keep the object in circular motion. The tension in the string provides this force. The centripetal force can be calculated using the equation:
F = (M * v^2) / R
where M is the mass of the object, v is the speed of the object, and R is the radius of the circular path.
So, the tension in the string just before it breaks is given by the mass of the object multiplied by the square of its speed, divided by the radius of the circular path.
To learn more about equation of motion refer here:
https://brainly.com/question/29278163#
#SPJ11
Why it is important to know the advantages of locomotor ang nonlocomotor skills in our life style?
Explanation:
Non-locomotor skills are classified as fundamental because they create the foundation for developing safety skills, and every-day utilitarian skills (Kirchner & Fishburne, 1998). ... The acquisition of basic non-locomotor skills is likely to contribute to the performance of related activities.
If two similar large plates each of area having surface charge density is +a and -b are separated by a distance d in air find the expression for the potential difference and capacitance between them
Answer:
a. V = (a - b)d/2ε₀ b. 2ε₀A/d
Explanation:
a. The potential difference between the plates
Using Gauss' law, we first find the electric field between the plates
ε₀∫E.dA = Q where Q = charge enclosed, E = electric field
Now Q = [a +(-b)]A = (a - b)A where + a and -b are the surface charge densities of the plates and A is the area of the plates.
ε₀∫E.dA = Q
ε₀∫EdAcos0 + ε₀∫EdAcos0 = (a - b)A
ε₀E∫dA + ε₀E∫dA = (a -b)A
ε₀EA + ε₀EA = (a -b)A
2ε₀EA = (a -b)A
E = (a - b)/2ε₀
We now find the potential difference, V between the plates from
V = ∫E.dl
V =E∫dl
V = Ed where ∫dl = d the distance between the plates.
V = (a - b)d/2ε₀
b. The capacitance between them
Capacitance C = Q/V
= (a - b)A ÷ (a - b)d/2ε₀
= 2ε₀A/d
If four grams of matter are converted to their equivalent amount of energy, how much energy is released? Show your work.
Answer:
Equation of Special Relativity
\(E=mc^2\)
where:
E = energy (measured in Joules)m = mass (measured in kilograms)c = speed of light where \(c \approx 3 \times 10^8 \: \sf ms^{-1}\)First, convert 4 g into kilograms as mass is measured in kg:
\(\implies \sf 4\:g = 0.004\:kg=4 \times 10^{-3}\:kg\)
Substitute the given values into the equation and solve for E:
\(\begin{aligned}E & = mc^2\\\implies E & = \sf (4 \times 10^{-3}) \cdot(3 \times 10^8)^2\\& = \sf (4 \times 10^{-3}) \cdot (3^2 \times 10^{8(2)})\\& = \sf (4 \times 10^{-3}) \cdot (9 \times 10^{16})\\& = \sf 4 \cdot9 \times 10^{-3} \cdot10^{16}\\& = \sf 36 \times 10^{(-3+16)}\\& = \sf 36 \times 10^{13}\\& = \sf 3.6 \times 10^{14}\: \sf J \end{aligned}\)
Use Albert Einstein's equation
E=mc²m=0.004kg
E=(0.004)(3×10⁸)²E=0.004(9×10¹⁶)E=3.6×10¹⁴J
A 0.15 kg marble sliding to the right at 2.5 m/s on a frictionless surface makes a head-on collision with a 0.25 kg marble moving
to the left at 3.0 m/s. After the collision, the first marble moves to the left at 2.8 m/s. How fast does the second marble move to
the right?
Answer: 0.18 m/s
Explanation:
This is a conservation of momentum problem. Total momentum before the collision must equal the total momentum after the collision.
Momentum = p = mv
let x = velocity of the second marble after the collision
(0.15 kg)(2.5 m/s) + (0.25 kg)(-3.0 m/s) = (0.15 kg)(-2.8 m/s) + (0.25 kg)(x)
-0.375 kg·m/s = -0.42 kg·m/s + (0.25 kg)x
(0.25 kg)x = (0.42 - 0.375) kg·m/s = 0.045 kg·m/s
x = (0.045 kg·m/s) / (0.25 kg) = 0.18 m/s
Can an automobile with a velocity toward the north simultaneously have an acceleration toward the south? Explain.
how many joules are there in a candy bar containing 230,000 calories?
Approximately 962,920,000 joules in a candy bar containing 230,000 calories.
It is important to understand that joules and calories are both units of energy measurement. However, joules are the SI unit of energy, while calories are commonly used in nutrition. One calorie is equivalent to 4.184 joules.
To convert calories to joules, we can multiply the calorie value by 4.184.
Multiply the given calories by the conversion factor
In this case, 230,000 calories multiplied by 4.184 gives us 962,920,000 joules.
In summary, a candy bar containing 230,000 calories has approximately 962,920,000 joules of energy.
To know more about energy, click here
https://brainly.com/question/1932868
#SPJ11
how far do you have to raise the top part of the tube to achieve destructive interference in m tubes
Initially the sound waves are in phase and they overlap to form the constructive interference pattern. The length that we have to raise the top part will be equal to the wavelength of the waves in meters.
What is interference ?Interference is an absorption word from English, namely interference, which means interference, obstacles, and mixing. Interference in this case can be interpreted as an obstacle in a process caused by obstacles in the form of mixing something in something.
Wave interference is a combination of a number of separate waves in the same medium and produces a resultant wave. An example is music. Music is formed from a combination of several sound waves that interfere with each other.
Learn more About interferences at brainly.com/question/16098226
#SPJ4
Baring pneumothorax, this pressure is always lower than atmospheric pressure (that is, negative pressure) is called
Baring pneumothorax, this pressure is always lower than atmospheric pressure (that is, negative pressure) is called intrapleural pressure.
Intrapleural pressure refers to the pressure within the pleural cavity, which is the space between the lungs and the chest wall. Under normal conditions, the intrapleural pressure is maintained at a level lower than atmospheric pressure. This negative pressure is crucial for maintaining lung inflation and facilitating the process of breathing.
The negative intrapleural pressure is generated by the opposing forces acting on the lungs and chest wall. The elastic recoil of the lungs tends to collapse them inward, while the elastic recoil of the chest wall tends to expand it outward. These opposing forces create a negative pressure in the pleural cavity, which keeps the lungs expanded and allows for efficient gas exchange during respiration.
The negative intrapleural pressure is essential for maintaining the integrity of the lungs and promoting their optimal function. However, in the case of pneumothorax, air enters the pleural cavity, equalizing the pressure with atmospheric pressure and leading to a loss of the negative pressure. This can result in lung collapse and difficulty in breathing.
Learn more about intrapleural visit:
brainly.com/question/13147091
#SPJ11
each eye sees a different image. the difference is greater for objects that are close and smaller for objects that are far away. this difference is called (3 points)
Binocular disparity refers to the discrepancy between the images viewed by each eye. For items that are closer, the difference is greater, and for those that are farther away, the difference is smaller.
The discrepancy between how an object appears to the left and right eye is known as binocular disparity. The difference is brought about by the horizontal distance between the eyes, which offers each eye a marginally different perspective of the outside world. The brain generates a 3D perception of the surroundings using the discrepancies between the images from the two eyes. The object appears to be closer the higher the binocular dispersion. The images perceived by each eye differ more from one another because the eyes must condense more in order to focus on close objects. On the other hand, since the eyes are almost parallel, objects in the distance have less discrepancy.
learn more about discrepancy here:
https://brainly.com/question/29723856
#SPJ11
An electron moves in a circular path of radius 20 cm in a uniform magnetic field of 2 x 10³ T Find the speed of the electron and period of revolution. Mass of electron = 9.1 x 10-31 kg. [Ans: 7.02 x 10 m/sec and 5.6 x 10 rev/sec]
The linear speed of the electron is 7.03 x 10¹³ m/s and the angular speed of the electron is 5.6 x 10¹³ rev/s.
Speed of the electron
The speed of the electron is calculated as follows;
F = ma = mv²/r ---(1)
F = qvB ----- (2)
mv²/r = qvB
mv/r = qB
mv = qBr
v = qBr/m
where;
m is mass of the electronB is magnetic fieldr is radius of the circleq is charge of the electronv = (1.6 x 10⁻¹⁹ x 2 x 10³ x 0.2) / (9.1 x 10⁻³¹)
v = 7.03 x 10¹³ m/s
Angular speed of the electronω = v/r
ω = (7.03 x 10¹³ m/s) / (0.2 m) = 3.51 x 10¹⁴ rad/s
ω = 3.51 x 10¹⁴ rad/s x 1 rev/2π rad
ω = 5.6 x 10¹³ rev/s
Thus, the linear speed of the electron is 7.03 x 10¹³ m/s and the angular speed of the electron is 5.6 x 10¹³ rev/s.
Learn more about linear speed here: https://brainly.com/question/15154527
#SPJ1
5. Relationships in a community can be cooperative or competitive.
True
False
Answer:
True
Explanation:
is the correct answer
Answer:
This is True
Explanation:
Communities cooperate by simply co-existing and working together to benefit the community and offering their goods and services. Some programs in a community offer social work, like volunteering and charities, which help people in need in a community.
They can also be competitive because there are lots of the same goods and services offered throughout the city, so businesses have to compete for sales to attract consumers in the communities.
Mark me brainliest pls thank you
A rhino can run at 50 km/h. From rest, they can get up to that speed in just a few strides (about 11 meters). Making them very dangerous to be around. Getting their mass, 1500 kg, up to that speed requires quite a bit of force. What is the average force, in Newtons, required?
The average force required in newton, given that the rhino can run at 50 km/h from rest is 13155 N
How do i determine the average force required?First, we shall obtain the acceleration of the rhino. Details below:
Initial velocity (u) = 0 m/sFinal velocity (v) = 50 Km/h = 50 / 3.6 = 13.89 m/sDistance (s) = 11Acceleration (a) = ?v² = u² + 2as
13.89² = 0² + (2 × a × 11)
13.89² = 0 + 22a
13.89² = 22a
Divide both side by 22
a = 13.89² / 22
= 8.77 m/s²
Finally, we shall obtain the average force required. Details below:
Mass (m) = 1500 KgAcceleration (a) = 8.77 m/s²Average force required (F) =?Average force required = mass × acceleration
= 1500 × 8.77
= 13155 N
Thus, the average force required is 13155 N
Learn more about force:
https://brainly.com/question/12163222
#SPJ4
A 55 kg boy running at 2.0 m/s jumps onto a 2.0 kg skateboard. Calculate the
final velocity of the boy and the skateboard.
Answer:
The velocity of the boy and the skateboard is 24
Someone please help I’ll be so grateful with one paragraph I don’t know how to begin…..
In this question you will be
assessed on using good English, organising information clearly and using
specialist terms where appropriate.
The table below shows some information about a new planet; Pegasi b, and Earth
Peg. Earth
Distance from the star| 7.7. 150
Time to orbit the sun|. 4. 365
Time to spin once on axis| 4. 1
Tilt of axis|. 79. 23.5
Write a guide to the new planet comparing it to earth and other planets in
the solar system and if it is possible to live there.
Answer:
Explanation:
Welcome to Pagasi b, new recruit. You will enjoy your new, fresh , home planet. Your new home world is more relaxed than earth, days are longer by about quadruple, as are the nights. Also seasons are also about 4 times as long on Pagasi b. one year on Pagasi b is a bit over 4 years on earth. You'll get great harvests and plenty of time to rest up during the mild, yet cool winters. If the equatorial region is too warm for you during summer you can always travel north as the planet is at a 79 degree axis tilt , and will provide much cooler climes as you travel north for summers. Have a great day, day, day, day :P
Which arrow represents the change of state described above? The diagram shows changes of state between solid, liquid, and gas. The atoms of a substance lose energy during a change of state. Before the change, the atoms are close together but are able to slide past one another. Ом N gas P M Ζ Ο P solid liquid
Its P path describes the change of state i.e from solid to liquid.
What is solid ?
"A solid is that state of matter which has a fixed shape, mass, and volume. It suffers very small changes in volume by changing the temperature. It can not be compressed, e.g. — Sand, Wood, Copper, Ice, etc."
What is liquid ?
"A liquid is a sample of matter that conforms to the shape of a container in which it is held, and which acquires a defined surface in the presence of gravity. The term liquid is also used in reference to the state, or condition, of matter having this property."
Know more about solid here
https://brainly.com/question/20461295
#SPJ3
What does it mean when someone says that radio waves can be modulated?
In which situations can the speed adjust by route function of propilot assist with navi-link automatically reduce vehicle speed?
The Speed Adjust by Route function of ProPILOT Assist with Navi-link can automatically reduce vehicle speed in situations such as tight curves, freeway exits, junctions, and tollbooths.
ProPILOT Assist with Navi-link is an advanced driving assistance system designed to make driving safer and more convenient. It uses various sensors and navigation data to predict upcoming road conditions and adjust vehicle speed accordingly. In situations where tight curves or freeway exits are detected, the system will automatically slow down the vehicle to help maintain stability and control. At junctions, the speed may be reduced to facilitate merging with other traffic, and at tollbooths, the system will slow down the vehicle for a safer approach. This function contributes to a more comfortable driving experience and increases overall safety.
Learn more about sensors here:
https://brainly.com/question/15396411
#SPJ11
Net arc energy input Hnet=fxHnet
The equation you are referring to, Hnet=fxHnet, relates to the net arc energy input of a welding process.
The net arc energy input, Hnet, is equal to the product of the welding current, f, and the welding voltage, Hnet. This equation is used to calculate the amount of energy that is transferred to the weld during the welding process.
It is important to monitor the net arc energy input to ensure that the weld is of high quality and to prevent defects such as porosity and cracking.
By adjusting the welding current and voltage, the net arc energy input can be optimized for the specific welding application.
learn more about welding here: brainly.com/question/19997700
#SPJ11
What do magnesium and chlorine react to form?
A.
MgCl2
B.
Mg2Cl
C.
MgCl
D.
Mg2Cl2
HELP FAST PLEASE
Plz help me!
How do electromagnetic fields work?
Answer:
Electromagnetic field, a property of space caused by the motion of an electric charge. A stationary charge will produce only an electric field in the surrounding space. If the charge is moving, a magnetic field is also produced. An electric field can be produced also by a changing magnetic field.
Consider a 120 V AC microwave oven that draws 8.5 A. Randomized Variables I = 8.5 A d What is the maximum instantaneous power consumption, in kilowatts, of the microwave? Pot
The maximum instantaneous power consumption of the 120 V AC microwave oven that draws 8.5 A is 1.02 kW
The maximum instantaneous power consumption of the microwave can be calculated using the formula
P = VI, where P is power in watts, V is voltage in volts, and I is current in amperes.
Therefore, the maximum instantaneous power consumption of the microwave can be calculated as follows:
P = 120 V x 8.5 A = 1020 watts
To convert wats to kilowatts, we divide by 1000, so the maximum instantaneous power consumption of the microwave in kilowatts is:
P = 1020 watts / 1000 = 1.02 kW
Hence, the maximum instantaneous power consumption of the 120 V AC microwave oven that draws 8.5 A is 1.02 kW, which can be calculated using the theory of power being equal to voltage multiplied by current.
learn more about instantaneous power click here:
https://brainly.com/question/30329634
#SPJ11
Which body system allows the student to sense the water and sand textures?
Muscular
Nervous
Skeletal
Immune
Option B is correct. The nervous system is also known as the neural system which is basically a sophisticated network of neurons that are trained to transport information.
What is the nervous system?The nervous system is also known as the neural system which is basically a sophisticated network of neurons that are trained to transport information.
As we get to higher animals, the nervous system becomes more complicated. jellyfish, have very basic neural nets that run throughout their bodies. Crabs have a more complex nervous system.
The neural system in the human body combines organ activity depending on inputs detected and sent by neurons. They send out information.
Thus Option B is correct.
To learn more about the nervous system refer to the link;
https://brainly.com/question/13487019
Which one of these is not a physical charge
A melting and ice cube
B crushing a can
C chopping wood
D metal resting
Answer:
the answer is D metal resting
Explanation:
I just think that because if you treasure can that's physical charge by dropping where you create a physical charge melting and Ice Cube might be 1 but I feel like metal resting is more likely
Hypochondriacs seek out medical care in order to verify that they do not have an illness.
Please select the best answer from the choices provided
T
F
Answer:
False
Explanation:
Just took the test
False, because hypochondriacs think they have a significant, undetected medical ailment even when testing reveal they are healthy.
Who are hypochondriacs?A hypochondriac is someone who, despite diagnostic testing showing they have no health issues, lives in constant anxiety that they have a terrible, undetected medical illness. They are obsessed with the concept that they suffer from a major illness that has gone untreated.
In adults, hypochondriasis often begins to manifest. Among the symptoms are a persistent, strong anxiety of developing a major illness and concern that seemingly little symptoms portend a larger problem. A patient may change physicians or see them regularly.
Medication and counselling could be helpful.
Learn more about hypochondriac, here:
https://brainly.com/question/11046677
#SPJ5
gravity and orbits phet lab simulation
Answer:
Explanation: is a good compilation
Is this right? Please help me ITS SOCIOLOGY
-
= 49 cm²
A base of
a triangle is 20cm and the beacht
14cm. Find the area at be briangle
Answer:
=140 cm²
Explanation:
1
____ ×20x 14
2
=1
___ x base × height
is the formula have a gr8 day :)
2
two objects of mass 2m and 10m undergo a completely inelastic collision (they stick together) in one dimension. if the two objects are at rest after the collision, what was the ratio of their speeds before the collision?
The ratio of their speeds before the collision is 0.
In an inelastic collision, the two objects stick together and move as one object after the collision. We can apply the principle of conservation of momentum to solve this problem.
Before the collision, the total momentum of the system is given by:
Total momentum before collision = (mass of object 1 * velocity of object 1) + (mass of object 2 * velocity of object 2)
Since both objects are initially at rest, their velocities are 0. Therefore, the total momentum before the collision is also 0.
After the collision, the two objects stick together and move with a common velocity. Let's denote this common velocity as V.
The total momentum after the collision is given by:
Total momentum after collision = (mass of combined object * velocity of combined object)
Since the two objects stick together, the mass of the combined object is the sum of the masses of the individual objects, i.e., (2m + 10m) = 12m.
The total momentum after the collision is therefore 12mV.
According to the principle of conservation of momentum, the total momentum before the collision is equal to the total momentum after the collision. Therefore:
0 = 12mV
Since the velocity V is zero (objects are at rest after the collision), we can conclude that the ratio of their speeds before the collision is:
Velocity of object 1 / Velocity of object 2 = 0
So, the ratio of their speeds before the collision is 0.
To know more about collision here
https://brainly.com/question/13138178
#SPJ4
an object of mass 100 grams hangs from a long spring. when pulled down 10 cm from its equilibrium position and released from rest, it vibrates with a period of 2 seconds. (a) what is the speed of the object as it passes through the equilibrium position?
Given, Mass of the object, m = 100 grams = 0.1 kg. Therefore, the speed of the object as it passes through the equilibrium position is 0.31 m/s. The answer is 0.31 m/s.
Displacement from the equilibrium position, x = 10 cm = 0.1 m, Time period, T = 2 seconds(a) To find the speed of the object as it passes through the equilibrium position, we need to find its maximum speed. We know that the time period, T = 2π √(m/k)where k is the spring constant of the spring. k = 4π²m/T² = 4π² × 0.1/2² = 0.98 N/m, The force exerted on the object, F = kx = 0.98 × 0.1 = 0.098 N. When the object passes through the equilibrium position, all the potential energy is converted into kinetic energy. Therefore, the kinetic energy at the equilibrium position is K.E = 1/2 mv²where v is the velocity of the object. So, equating the potential energy with kinetic energy,1/2 kx² = 1/2 mv²v = x √(k/m) = 0.1 √(0.98/0.1) = 0.31 m/s.
to know more about displacement visit:
https://brainly.com/question/29957379
#SPJ11