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Determine the minimal power delivered by the motor to the elevator in watts as well as in horsepower. A bullet of mass 0.03 kg moving with a speed of four hundred ms-1 penetrates 12 cms into a fixed block of wood.

Obtain the speed of the masses (after they're launched) when the 2 kg mass just touches the floor. On Fig. 3.1, sketch the variation with thermodynamic temperature of the root-imply-sq. speed of the molecules of the fuel. State three conclusions which may be drawn from Fig.

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The instructor informed Rajesh that he has carried out zero work however Rakesh has performed the work.

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