Work, Energy and Power

Related Questions

• A cord is used to lower vertically a block of mass M by a distance d with constant downward acceleration $\frac{g}{4}$. Work done by the cord on the block is

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• An inelastic ball is dropped from a height of 100 m. Due to earth, 20% of its energy is lost. To what height the ball will rise

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• A bullet of mass a and velocity b is fired into a large block of mass c. The final velocity of the system is

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• If the heart pushes 1 cc of blood in one second under pressure 20000 N/m2 the power of heart is

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