What are the units of power? a) Newton b) Joule c) Watt d) No units
Q: In which of the following situation is there a decrease in potential energy? A. Pump forcing water…
A: The potential energy is given as, Here, m denotes the mass, g denotes the acceleration due to…
Q: An 80 kg object is dropped from rest from a height of 25 meters above the ground. Use the concept…
A:
Q: Which of the following is not a unit of power? a. J/s b. W⋅s c. ft⋅lbs/s d. hp
A: To find: which is not the unit of power?
Q: Power is defined by? Choose all that apply. A. Rate of doing work. B. force / time C. work done /…
A:
Q: If Nellie newton pushes an object with twice a force for twice the distance, she does A.) 8 times…
A: Work done = Force x Displacement W=F.d
Q: 4. Is the amount of work accomplished dependent on how long it takes to accomplish that work?…
A:
Q: When a hybrid car brakes to a stop, much of its kinetic energy is transformed to A. Heat B. Work C.…
A: The correct option is (C) Explanation- whenever car stops the car use friction brakes which inhibit…
Q: 2) If the net work done on an object is zero, then the object's kinetic energy A) decreases. B)…
A: using Work Energy theorem the net work done on an object is equal to change in the object's kinetic…
Q: The following lab set-up consists of two carts on a frictionless surface. Each end of the spring is…
A: Given:- The mass of cart A is m and the other mass of cart B is 3m and both the cart are connected…
Q: What is the difference between power and energy? Answer by showing their units AND by providing an…
A: To Differentiate between Power and Energy .
Q: A 680N student runs up a flight of stairs 3.5m high in 11.4 seconds. The student takes 8.5 seconds…
A: Write the given values with the suitable variables. F=680 Nd=3.5 mt1=11.4 st2=8.5 s Here, F, d, t1,…
Q: The average horsepower required to raise a 150 kg drum to a height of 20 m in a time of 1 minute is…
A: Givenmass, m=150 kgheight, h=20 mtime , t=1 min =60 swork done would beW=mgh…
Q: Which of the following statements is true about kinetic energy for the given figure? point A point C…
A: According to the conservation of energy total energy (potential energy + kinetic energy) of the ball…
Q: If the same amount of work is performed in three times the amount of time, what is true about the…
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Q: 1. If you pushed a 20 kg box across the floor for a distance of 60 m with a force of 15 N how much…
A: #1 Given data: The mass of box is m=20 kg. The distance traveled by the box is d=60 m. The force…
Q: Choose the false statement regarding work done by a force on an object. The amount of work…
A: Given information: Work is done on an object by applying a force.
Q: 2. How much work is done by 15 kW engine during 3.5 min?
A: Given value--- power = 15 kW. time = 3.5 min . We have to find--- work ?
Q: All the following are units of power except a. hp b. watt С. J/s d. N.m/s e. kg.m/s^2
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Q: Forgiving person as the time needed to run up a flight of stairs decreases the power does what
A: When the force is applied on a body,the work is done by the system to move it by a distance. Work…
Q: 1. A force acting upon an object to cause a displacement is known as energy b. potential ckinetic d.…
A: A force acting upon an object to cause a displacement is known as work. Hence, correct option is…
Q: 1.) Why is it inportant to realize what is doing the work and what is having the work done on it in…
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What are the units of power?
a) Newton
b) Joule
c) Watt
d) No units
Step by step
Solved in 3 steps
- 93. How much power is required to do 180 J in 2.4s? * a. 178 W O b. 430 W O c. 7.5 W O d. 75 WKinetic energy depends on A. Mass and volume B. Weight and height C. Velocity and weight D. Velocity and mass13 a) Calculate the work done when a 5.0 kg bag of apples is lifted 1.2 m off the ground. 13 c) Calculate the power developed when the action of lifting the apples takes 2.0 s.
- 96. What is kinetic energy? " a. energy of an object has due to its motion b. energy stored within an object c. energy an object creates d. energy available to a stationary object8. How much time is needed to produce 720 Joules of work if 90 watts of power is used? 9. If 68 Joules of work were necessary to move a 4 Newton crate, how far was the crate moved? 10. If 68 W of power is produced in 18 seconds, how much work is done?A homogeneous pulley with two grooves consists of two wheels which turn together as one around the same axis. The moment of inertia of the two wheels together is ICM = 40 kg m2. The radii are: R1 = 1.2 m and R2 = 0.4 m. The masses that hang on both sides of the pulley are m1 = 36 kg and m2 = 12 kg. We will assume that the masses of the ropes are negligible. Determine the angular acceleration of the pulley, acceleration of the masses, and the tensions of the ropes.
- A person does 400 J of work in 5 sec. Power of the person is calculated tto be ? Choose one correct answer with correct unit of measure of power. A. 80 J/s B. 2000 J C. 80 J D. 2000 J/sA force of 1300 lb compresses a spring from its natural length of 18 in. to a length of 10 in. How much work is done in compressing it from 10 in. to 5 in.? A) 2000 in. · Ib B) 17,000 in. · lb O C) 0.32 in. · Ib D) 8500 in. · IlbWhat is the correct expression for power? a) P = dW/dt b) P = F * d c) P = E d) P = dE/dt