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A stone weighing 1 kg is dropped from rest from a height of 4 metres above the ground. When it has freefallen 1 metre its total energy with respect to the ground is
A lamp consumes 1000 J of electrical energy in 10 seconds. What is its power?
When we throw a rock from the top of a building which equation describes the energy of the body at each point during the fall?
A diesel engine supplies 25,000 J of energy in 50 seconds. Power of engine would be
If a light bulb is switched on for 20 s and it consumes 2400 J of electrical energy then it's power is
A ball is thrown vertically upwards. Its velocity keeps on decreasing. What happens to its kinetic energy when its reaches the maximum height?
In winters, rubbing of hands together for some time, causes a sensation of warmth mainly because of
66 videos355 docs97 tests

66 videos355 docs97 tests
