0.4 uc of charged ball is connected with to earth through a wire. calculate the current flowing through a the wire if time required discharge the ball is 0.2 seconds. draw a diagram for this case including the current direction

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

The energy produced as a result of this flow of electrons from atom to atom is called