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संबंधित प्रश्न
What is the source of heat contained in geothermal energy?
A boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
A stretched wire
What kind of energy is possessed in a situation when?
A shooting arrow.
Give one example when:
Mechanical energy to heat energy.
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
In a hydroelectric power station, 1000 kg of water is allowed to drop through a height of 100 m in 1 sec. If the conversion of potential energy to electric energy is 60%. Calculate the power output. [Take: g = 10m/sec2]
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A moving bus
