What is the unit of work?
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A: Work done = Force x Displacement W=F.d
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A: Four students took turns applying a force to an object in a physics lab. The graph below shows the…
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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…
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A: Expression for work done - W=Fdx Where, F = Force dx = Displacement
Q: A block is moving with 52.0 J of KE. A 12.0 N force pulls the block straight back, against the…
A: Given data: Initial Kinetic Energy (KEi) = 52.0 J Force (F) = 12.0 N, straight backward Displacement…
Q: 7. A ball is thrown straight up. Neglecting air resistance, which statement is not true regarding…
A: A ball is thrown straight up with some initial velocity. Air resistance is neglected.
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Q: 5. What is kinetic energy? Select one: a. stored energy b. energy of friction c. energy of motion d.…
A: Kinetic energy: It is the energy possessed by the object due to its motion. When the object having…
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A: Work done is the energy transferred when a force is displaced by a distance.
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Q: Which one of the following is equivalent to a watt? O a. N.m2 O b. N.m O C. J.s O d. N.m.s1
A: Watt is unit of power. Power= Energytime Unit Nms-1
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A: Mechanical energy is the sum of kinetic energy and potential energyH = T +Uwhere H denotes the…
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Q: Choose all that apply to potential energy. A. Potential energy can be negative. B. Potential…
A:
Q: You push a shopping cart a certain distance with a certain force. If you apply that same force, but…
A: According to question we need to find--- work done ?
Q: d in terms of magnitudes, so it is never negative.
A:
C7 6.) What is the unit of work?
Given:
The unit for the measurement of the work.
Concept:
The movement or the displacement of an object by the cause of the external force acting on it is called work.
Step by step
Solved in 3 steps
- 89. What happens to the kinetic energy of a moving object if the net work done is positive? * O a. The kinetic energy increases. O b. The kinetic energy decreases. c. The kinetic energy remains the same. O d. The kinetic energy is zeroTo push a 52-kg crate across a floor, a worker applies a force of 190 N, directed 22° below the horizontal. As the crate moves 3.3 m, a.) How much work is done on the crate by the worker? b.) How much work is done on the crate by the force of gravity? c.) How much work is done on the crate by the normal force of the floor?A certain force does −7 J of work in moving an object located at position A to position B. The same force then does −7 J of work in moving it back from position B to position A. No other forces did work. Was mechanical energy conserved? Was energy conserved? a. Total energy was conserved but not mechanical energy. b. Mechanical energy was conserved but not total energy. c. Both mechanical energy and total energy were conserved d. Neither mechanical energy nor total energy was conserved.
- Choose all the correct statement that applies to Work. A. Work is the product of force and distance. B. Work is a vector quantity. C. Work is a scalar quantity. D. work has magnitude only.QUESTION 9 While moving a package up and down on a storage shelf the mover does +500 J of work and gravity does-500 J of work. Which statement is true about the Potential Energy and the Kinetic Energy of the package: A. The Potential Energy of the package is decreased. B. The Potential Energy of the package is increased. C. The Kinetic Energy of the package is increased. D. The Kinetic Energy of the package is decreased. E, The Potential Energy of the package does not change.A meteor falls toward Earth's surface. Given that the acceleration due to gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 50 kg at an altitude of 300 m? A. 16 J B. 147,000 J C. 22,050,000 J D. 1,531 J