A ball of mass 100g falls from a height of 5m onto a concrete floor and rebounds to a height of 3m. Calculate the energy lost. (g = 10ms^-2)

Similar Questions

A cell of internal resistance r supplies current to a 6.0Ω resistor and its efficiency is 75%. Fin...

Which of the following statements about electrolysis is NOT correct? ...

A ray of light is incident normally on a plane mirror. If the incident ray is kept fixed while the m...

In which of the following fields is radioisotopes not used? ...

A nitrogen nucleus bombarded with an alpha particle produces an oxygen nucleus and a proton. The nuc...

A transformer with 5500 turns in its primary winding is used between a 240V a.c supply and 120V kett...

Aluminium is sometimes used as the leaf of an electroscope because it ...

The S.I units of frequency, period and amplitude of a wave are respectively...

Which of the following operations can be used to convert an alternative current dynamo into a direct...

From the diagram, the correct equation for the refractive index n of the medium is ...