Answer:
The ability of gases to be forced or squeezed into smaller volumes is called compressibility
what is the molecular formula for the hydrocarbon in the mass spectrum above?
could you help me pleaseeeeeeee " if a car starts from a stop and speeds up to 15 m/s in a time frame of 5 seconds calculate the acceleration
Answer:
\(vf=vi+at\\vf=15\\vi=0\\a=?\\t=5\\\\15=0+a5\\a=\frac{15}{5} \\a=3\)
Therefore the acceleration is 3m/s^2
Explanation:
We will be using the kinematics big five equations. Specifically, the one without displacement (d).
Write out your values and substitute the, into the equation.
Solve for a.
Note. Starts from stop so vi=0
Explore the role of friction when creating safety ramps and escalators. "Why is it important for people and object to move slowly on ramps and escalator?
The role of friction is of great importance when creating safety ramps and escalators because with the help of friction things move.
Why is it important to move objects slowly on ramps and escalator?It is important to move objects slowly on ramps and escalator because the ramps and escalator moves object in the opposite direction of gravity. If we did not move objects slowly, then the objects or a person get damaged.
So we can conclude that the role of friction is of great importance when creating safety ramps and escalators because with the help of friction things move.
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TRUE/FALSE. the greatest shear stress to the acl occurs in 60° to 90° flexion in an open kinetic chain exercise.
The given statement "the greatest shear stress to the acl occurs in 60° to 90° flexion in an open kinetic chain exercise." is TRUE. The greatest shear stress to the anterior cruciate ligament (ACL) occurs in the range of 60° to 90° flexion during open kinetic chain exercises.
This is because at this angle, the forces acting on the knee joint are most likely to produce shear stress on the ACL, which is the primary restraint to anterior tibial translation. Closed kinetic chain exercises, on the other hand, are thought to produce less shear stress on the ACL as the foot is in contact with the ground and the forces are distributed more evenly across the joint.
It is important for individuals recovering from ACL injury or surgery to be aware of these factors and modify their exercises accordingly to prevent re-injury or further damage to the ligament.
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Is there an equal and opposite reaction for every action?
Answer: Yes it is true according o newton third law of motion
What is Newton Third Law of motion ?
--According to Newton's third law of motion, every action has an equal and opposite reaction.
--These two forces act on two different bodies.
-- Example,
1- while swimming, you push the water backward. The water, in turn, pushes you forward.
--Similarly, while walking, you push the ground backward.
-- The ground then exerts a reaction force on you in the forward direction.
What is Newton Second Law of motion ?
--Newton's second law of motion states that “Force is equal to the rate of change of momentum.
--For a constant mass, force equals mass times acceleration.
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why is hip-hop & Zumba dance exercises so popular? does dancing make you a better person?
Answer:
not realy
Explanation:
dancing is a way of exercise and liking a song or you're just happy etc.
There are two reasonable approximations to consider for the pencil in this problem: a cylinder and a thin rod. However, in this problem we will treat the pencil as a uniform thin rod of length 15.0 cm and mass 10.0 g . The pencil rotates about an axis perpendicular to the plane of the figure. Which of the labeled points is the point that the axis of rotation passes through?
The point that the axis of rotation passes through in the pencil of length 15.0 cm and mass 10.0 g is point B.
The free body diagram of the pencil that rotates about an axis perpendicular to the plane of the figure is shown in the image attached below.
N = Normal force
mg = Weight
C = Center of mass point
f = Frictional force
The weight of the pencil acts in vertically downward direction at the center of mass of the pencil, that is, at point C. Since, the pencil touches the surface at point B, the force due to weight of the pencil produces a torque and makes the pencil rotate about point B.
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suppose a particle is undergoing circular motion in the xy-plane, with the center of the circle at the origin. the particle is moving at a constant speed, and is traveling counterclockwise around the circle. when the particle is moving to the left, what is the direction of the acceleration vector?
The acceleration vector is always directed towards the center of the circle, so when the particle is moving to the left, the acceleration vector is directed to the right.
The magnitude of the acceleration vector is equal to the square of the velocity divided by the radius of the circle, so it is always pointing towards the center of the circle.
The magnitude of the acceleration vector is a result of the centripetal force that is required to keep an object moving in a circular path. This centripetal force is directed towards the center of the circle and is equal to the product of the mass of the particle and the square of its velocity divided by the radius of the circle.
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To see if your results are reasonable, you can compare the final velocity of the stone as it falls down unwinding the wire from the pulley, to the velocity the stone would have if falling the same distance while unconnected to the pulley. What is the velocity of an untethered stone after falling 0.337 m from rest
Answer:
The velocity of the stone is 2.57 m/s.
Explanation:
Given that
Height = 0.337 m
We need to calculate the velocity of the stone
Using equation of motion
\(v^2-u^2=2gh\)
Where, v = velocity of stone
u = initial velocity
g = acceleration due to gravity
h = height
Put the value into the formula
\(v^2-0=2\times9.8\times 0.337\)
\(v=\sqrt{2\times9.8\times0.337}\)
\(v=2.57\ m/s\)
Hence, The velocity of the stone is 2.57 m/s.
studx the pulley in (figure 1) represents different pulleys that are attached with outer radius and inner radius indicated in the table. the horizontal rope is pulled to the right at a constant linear speed that is the same in each case, and none of the two separate ropes slips in its contact with the pulley.
The ranking of given scenarios on the basis of the linear speed of block is: C > E > A = B = D > F
What is a pulley system?A pulley is a wheel on an axle or shaft designed to assist in the movement and change of direction of a tensioned cable or belt, or in the transmission of power between a shaft and a cable or belt.
Whether belts, cables or chains, all cable pull systems work according to the same principle. For example, the speed of all pulleys in a pulley system can be calculated by taking the ratio of the diameters of each pulley.
Linear speed (v) ∝ R inner/R outer
So, the higher the value of ratio, higher will be the speed.
Let's calculate the R inner/R outer ratios for each case:
A) 0.4/0.8 = 0.5
B) 0.1/0.2 = 0.5
C) 0.5/0.6 = 0.83
D) 0.2/0.4 = 0.5
E) 0.3/0.4 = 0.75
F) 0.2/0.6 = 0.33
The speed in highest in case C, whereas it is lowest in case F.
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The complete question is as follows:
The pulley in (figure 1) represents different pulleys that are attached with outer radius and inner radius indicated in the table. the horizontal rope is pulled to the right at a constant linear speed that is the same in each case, and none of the two separate ropes slips in its contact with the pulley.
A) R outer = 0.8m; R inner = 0.4m
B) R outer = 0.2m; R inner = 0.1m
C) R outer = 0.6m; R inner = 0.5m
D) R outer = 0.4m; R inner = 0.2m
E) R outer = 0.4m; R inner = 0.3m
F) R outer = 0.6m; R inner = 0.2m
Rank these scenarios on the basis of the linear speed of block.
Which of the following measurements is NOT a vector?
A. 12 m/s, East
B. -7 m
C. 18 s
D. 3.2 miles, up
Answer:
C. 18 s
&
B. -7 m
Explanation:
A. 12 m/s, East is a vector. It says "East" so it would be a vector. Therefore this is not our answer since it's a vector and the question is asking for which one is not a vector.
B. It says "7 m". I think that means 7 meters. That's a length. There is no direction. It's not 7 meters up, or to the east, or north. So, with no direction, it's not a vector. Therefore this is not our answer.
C. For this one it says ""18 s". I think that means "18 seconds". Since this one is not mentioned "direction" meaning it's not a vector. Since the question is asking for the ones that are not a vector this would be another answer.
D. Since this one says "miles" it means it has a direction since it has a direction it is probably a vector, since it's a vector it wouldn't be our answer. Therefore this is not our answer.
What is the mass of 2000 ml of an intravenous glucose solution with a density of 1.15 g/ml?
According to the following formula, the answer is 2,300 g or 2.3 kg:
Volume (m)/Mass (m) Equals Density (p) (V)
Here, the density is 1.15 g/mL, allowing the formula described above to result in a mass of 2.00 L:
p=m/V
1.15 g/mL is equal to x g/2.00 L or x g/2,000 mL.
2,000 mL of x g = 1.15 g of g/mL
2.3 kg or 2,300 g for x g.
How many grams of glucose are in a 1000ml bag of glucose 5?Its active ingredient is glucose. This medication includes 50 g of glucose per 1000 ml (equivalent to 55 g glucose monohydrate). 50 mg of glucose is present in 1 ml (equivalent to 55 mg glucose monohydrate). A transparent, nearly colourless solution of glucose in water is what is used in glucose intravenous infusion (BP) at 5% weight-to-volume.
Patients who are dehydrated or who have low blood sugar levels get glucose intravenously. Other medications may be diluted with glucose intravenous infusion before being injected into the body. Other diseases and disorders not covered above may also be treated with it.
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Scientists have made predictions about the universe today based on the big bang theory. Observations that match these predictions support the big bang theory. Which of the following observations have scientists made that provides evidence of the big bang?
A. Light from the moment of the big bang has been observed.
B. The percentages of hydrogen and helium match the predicted percentages.
C. Galaxies are moving toward each other as predicted by the big bang theory.
D. Many galaxies that are similar to the Milky Way have been observed.
Answer:
the answer is b
Explanation:
Answer:
b
Explanation:
I just did it on a p e x
it is harmful to settle near the airport why
During a snow day you decide to go sledding! You exert a force of 45N in order to pull a sled. You also perform 4723 J of work on the sled. Find the distance that you pulled the sled horizontally along the ground.
Supposet that f(x,y)= The temperature of a sheet of metal (in°C)at the position (z,y) (in cm) Suppose that VJ (2,3)=(5,12) Suppose that an ant is crawling on the pan. At t=5s, the position of the ant is (2,3) cm, and the velocity of the ant is (3, 4) cm/s. For each of the following questions, show how you get your answer.
(a) At t= 5s, at what (instantaneous) rate is the ant warming up (assume the ant always has the same temperature as the metal it is standing on). Your a answer chould be in
(b) At t = 58, at what (instantaneous) rate is the ant warming up per cm it travels? Your answer should be in C
(c) If the position of the ant is (2,3) cm, in which direction should the ant move to maximize the instantaneous rate it warms up? Give your answer as a unit vector.
(d) If the posiiton of the ant is (2,3) cm and it is travelling in the direction given by (c), at what instantaneous rate is it warming up per cm it travles? Give your answer in cm C
(e) If the posiiton of the ant is (2,3) cm and it is travelling in the direction given by (c) with a speed of 4 at what instantaneous rate is it warming up with respect to time? Give your answer in
Explanation:
the answers are calculated in above pictures
The (hypothetical) \( \mathrm{ABC} \) index spot price is currently at 1302 and the continuously compounded riskfree ratais \( 6 \% \) p.a. The 6 -month observed futures price on the index is 1335 . W
The implied annualized risk-free rate of return for holding the futures contract is approximately 8.51%.
In this scenario, the futures price of the ABC index is higher than the spot price, indicating a positive cost of carry. To calculate the implied annualized risk-free rate of return, we can use the formula:
Implied Annualized Risk-free Rate = (Futures Price - Spot Price) / Spot Price * (365 / Time to Expiration)
Given the spot price of 1302, the futures price of 1335, and a 6-month expiration period, we can plug these values into the formula:
Implied Annualized Risk-free Rate = (1335 - 1302) / 1302 * (365 / 0.5)
Calculating the expression yields approximately 0.0851 or 8.51%. This implies that holding the futures contract on the ABC index would yield an annualized risk-free return of 8.51% if the current market conditions persist.
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The above given question is incomplete, below a complete question is written:
The (hypothetical) ABC index spot price is currently at 1302, and the continuously compounded risk-free rate is 6% per annum. The 6-month observed futures price on the index is 1335. What is the implied annualized risk-free rate of return for holding the futures contract?
This is a short answer question, please answer in full sentences.
Apply Newton’s third law of motion to the action of serving a volleyball.
Answer:
when we hit the volleyball. the ball goes up comes down
it comes down as it is forced by gravity
the force in which ball comes back is Newton 3 law
A golf ball is hit horizontally off the edge of a 20 m high cliff and lands a distance of 18 m from the edge of the cliff. What was the initial vertical velocity of the ball?
0 m/s
16 m/s
-16 m/s
40 m/s
Answer:
None of the options are correct.
Explanation:
Let \(V_x\) be the initial horizontal velocity of the golf ball t be the time of flight.
The time of flight, t, is the time taken by the ball to touch the ground. The ball falls towards earth due to gravitational force which acts vertically downward, so, the horizontal velocity of the ball remains unchanged.
As the horizontal distance covered by the ball is 18 m,
As distance = speed x time, so
\(V_x t = 18\cdots(i)\)
Now, by using the equation of motion in the gravitational field,
\(s=ut+\frac 12 g t ^2\)
Here, u is the initial velocity in the vertical direction, s is the displacement traveled in time t, g=9.81 is the acceleration due to gravity.
Here, we have u=0, s=20 m (height of the cliff), \(g=9.81 m/s^2\).
\(\Rightarrow 20=0\times t +\frac 12 (9.81)t^2\)
\(\Rightarrow t^2= \frac {20\times 2}{9.81}\)
\(\Rightarrow t= \sqrt{\frac {40}{9.81}}\)
\(\Rightarrow t=2\) seconds (approx)
From equation (i), e have
\(V_x\times 2=18\)
\(\Rightarrow V_x=18/2=9\) m/s.
So, the initial velocity of the ball is 9m/s in the hprizontal diection.
Hence, none of the options are correct.
__________ are essential components of any personal training plan.
A.
Intensity and protein
B.
Steroids and rest
C.
Rest and recovery
D.
Overload and fasting
Answer:
the ansewer is C
Explanation:
An orange dropped from a tree and had a velocity of 8 m/s just before it hits the ground. How far is the ground from orange's starting position?
The orange was at a height of 3.26 m above the ground.
State third equation of motion.The third equation of motion is
v² - u² = 2aS
Given is an orange dropped from a tree and had a velocity of 8 m/s just before it hits the ground.
We can write -
[v] = 8 m/s
[a] = 9.8 m/s²
[u] = 0 m/s
Using third equation of motion, we get -
v² - u² = 2aS
64 - 0 = 2 x 9.8 x S
64 = 19.6 x S
S = 3.26 m
Therefore, the orange was at a height of 3.26 m above the ground.
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the inside surfaces of the glass inside thermos bottles are coated with aluminum to prevent energy transfers by
Answer:
radiation heat.
Explanation:
That is any heat that passes through the air, like the sun.
Answer:
radiation
Explanation: I’m sure
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A liquid (rho = 1.65 g/cm3 ) flows through two horizontal sections of tubing joined end to end. in the first section, the cross-sectional area is 10 cm2 , the flow speed is 275 cm/s, and the pressure is 1.20x105 pa. in the second section, the cross-sectional area is 2.50 cm2 . calculate the smaller section’s (i) flow speed and (ii) pressure.
(i). The flow speed in the smaller section is 11 m/s.
(ii). The pressure in the smaller section is 7,352.56 Pa.
To solve this problem, we can apply the principle of conservation of mass and the Bernoulli's equation, which relates the pressure, velocity, and height of a fluid in a steady flow.
Given:
Density of the liquid (ρ) = 1.65 g/cm³ = 1650 kg/m³ (since 1 g/cm³ = 1000 kg/m³)
First section:
Cross-sectional area (A1) = 10 cm² = 0.001 m²
Flow speed (v1) = 275 cm/s = 2.75 m/s
Pressure (P1) = 1.20 ×\(10^5\) Pa
Second section:
Cross-sectional area (A2) = 2.50 cm² = 0.00025 m²
(i) To find the flow speed in the smaller section (v2), we can use the principle of conservation of mass:
A1v1 = A2v2
Solving for v2:
v2 = (A1v1) / A2
v2 = (0.001 m² × 2.75 m/s) / 0.00025 m²
v2 = 11 m/s
(ii) To find the pressure in the smaller section (P2), we can use Bernoulli's equation:
P1 + (1/2)ρv1² + ρgh1 = P2 + (1/2)ρv2² + ρgh2
Since the two sections are horizontal, the heights (h1 and h2) are the same, so the terms ρgh1 and ρgh2 cancel out. Additionally, the liquid is assumed to be at the same height, so we can disregard the gravitational term.
Simplifying the equation:
P1 + (1/2)ρv1² = P2 + (1/2)ρv2²
Solving for P2:
P2 = P1 + (1/2)ρv1² - (1/2)ρv2²
P2 = 1.20 × \(10^5\) Pa + (1/2) × 1650 kg/m³ × (2.75 m/s)² - (1/2) × 1650 kg/m³ × (11 m/s)²
P2 = 1.20 × \(10^5\) Pa + 9526.56 Pa - 45675 Pa
P2 = 7,352.56 Pa
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A savings account is opened with an initial deposit of $425. 0. Determine the account balance after 9 years if the account earns 2. 7% simple interest annually. $3,928. 28 $1,457. 75 $528. 28 $103. 28.
After 9 years, the account balance would be $528.28. The result is obtained by adding the amount of interest to the initial deposit.
How to count the simple interest?The simple interest of an amount of money can be counted by the following formula.
I = P × r × t
I = A - P
Where
I = simple interestP = principal amount (initial balance)r = simple interest ratet = time periodA = final balanceA savings account has the initial deposit of $425.00. It earns 2.7% simple interest per year. Find the final account balance after 9 years!
The amount of interest itself is
I = P × r × t
I = $425.00 × 2.7% per year × 9 years
I = $425.00 × 0.027 × 9
I = $103.28
The account balance after 9 years would be
I = A - P
$103.28 = A - $425.00
A = $425.00 + $103.28
A = $528.28
Hence, the final account balance after 9 years is $528.28.
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how are gravity and electromagnetic force similar and different?
Answer:
The biggest difference is that gravity is an attractive force while electromagnetism is both an attractive and repelling force. Gravity happens between two objects depending on their masses, while electromagnetism is dependent on the objects' electric charges and the distance between them.
Explanation:
what is the structure indicated by the number 2 in the figure and what is its functional significance?
The structure indicated by the number 2 in the figure is the mitochondrion, and its functional significance is energy production through cellular respiration.
The mitochondrion is an organelle found in most eukaryotic cells, responsible for producing energy in the form of adenosine triphosphate (ATP) through a process called cellular respiration. It is often referred to as the "powerhouse" of the cell due to its crucial role in energy production.
Mitochondria have a unique double membrane structure. The outer membrane acts as a protective barrier, while the inner membrane is highly folded into structures known as cristae. These folds greatly increase the surface area available for chemical reactions and the production of ATP.The functional significance of the mitochondrion lies in its ability to generate ATP, which is the main energy currency of the cell. Through the process of cellular respiration, the mitochondria break down organic molecules, such as glucose, to extract energy and convert it into ATP. This energy is then utilized by the cell to perform various functions, including growth, movement, and maintaining cellular processes.
In addition to energy production, mitochondria also play a role in other cellular processes, such as calcium signaling, metabolism regulation, and apoptosis (programmed cell death). Their involvement in these functions underscores their importance in overall cellular health and homeostasis.In summary, the mitochondrion is a specialized organelle responsible for energy production through cellular respiration. Its structural features and unique functions make it vital for providing the necessary energy for cellular processes.
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Explain the energy transformations that occur when breaking in a hybrid
vehicle.
it occur kinetic energy
when breaking in a hybrid
vehicle.
hope it helps
Answer:
it occur kinetic energy when breaking in a hybrid
vehicle .
hope it is helpful to you ☺️
what is the correct name for a bond between two phosphorus adtoms and three oxygen atoms
Covalent
Explanation:
Covalent Bond
Answer:
diphosphorus trioxide
Explanation:
The acceleration due to gravity on the earths surface is?
Acceleration due to gravity depends directly on the mass of Earth and inversely to the square of radius of Earth.
Answer:
9.8 m/s2
Explanation:
Acceleration due to gravity is the acceleration gained by an object due to the gravitational force. Its SI unit is m/s 2. It has both magnitude and direction, hence, it’s a vector quantity. Acceleration due to gravity is represented by g. The standard value of g on the surface of the earth at sea level is 9.8 m/s2.
If an electron (with a charge of 1.6 x10−19c) Experiences a force of 500 N at a certain point in an electric field, then find the strength of the electric field in that location
Answer:
3.125×10²¹ N/C
Explanation:
Electric Field: This can be defined as the force experienced per unit charge. The S.I unit of electric Field is N/C
Applying,
E = F/q.................. Equation 1
Where E = Electric Field, F = Force experienced, q = Charge of an electron.
From the question,
Given: F = 500 N, q = 1.6×10⁻¹⁹ C
Substitute these values into equation 1
E = 500/(1.6×10⁻¹⁹)
E = 312.5×10¹⁹
E = 3.125×10²¹ N/C