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MODERN PUBLICATION-WORK AND ENERGY-EXERCISE
- Find the work done in in reasing the speed of car from 18 kmh^-1 to 36...
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- What is the force required to lift a book of mass m? This force is req...
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- What happens to the potential energy if the height of a body is double...
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- Give two example of bodies possessing gravitational P.E.
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- Give two example of bodies possessing elastic P.E.
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- Define potential energy. Derive an expression for it. On what factors ...
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- A body of mass 6 kg is kept at a height of 5 m from the surface of ear...
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- The body of mass 6 kg is taken from a height of 5 m to a height of 10 ...
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- An object of mass 12 kg is at a certain height above the ground. If th...
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- A boy of mass 40 kg climbs vertically upwards on a coconut tree to a h...
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- A boy of mass 40 kg climbs vertically upwards on a coconut tree to a h...
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- In a solar cell panel, energy is converted into energy.
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- In a micorphone, energy is converted into energy.
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- The point of minimum kinetic energy in case of oscillating pendulum is...
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- Graphically show the variation of potential energy of a freely falling...
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- During a free fall K.E1 + P.Ei + = K.Ef+. Here I = initial and f = fin...
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- A body is thrown vertically upwards. During it srise the potential ene...
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- Name five devices and the energy conversion that takes place in the de...
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- A 2 kg ball is dropped from a height of 1. Find its kinetic energy jus...
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- A body is thrown up with a kinetic energy 100 J. Find the potential en...
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