A stone, when thrown on a glass window, smashes the window pan to pieces. But a bullet fired from the gun passes through it making a hole why?

Give reasons When a bullet is fired from a gun, the gun recoils.

Take an insulated copper wire of length not less than 1 m and make a solenoid (preferabley a wire of gauge number 26) It will act as a magnet when current from a cell is passed through it after inserting a soft iron core. What is this device known as ?

A stone is thrown upward from a moving train. a)Name the path followed by the stone. b)A particle is projected with a velocity u in the direction making an angle theta with the horizontal.Find: (1)Time of flight,(2)Maximum height. c)A man can jump on moon six times as high as on earth.Why?