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प्रश्न
Name the device or machine which convert :
Heat energy into kinetic energy (or mechanical energy).
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उत्तर
A steam engine converts heat energy into mechanical energy.
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संबंधित प्रश्न
State the condition under which the mechanical energy is conserved.
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- the potential energy possessed by the ball when it is initially at rest.
- the kinetic energy of the ball just before it hits the ground?
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