A circular loop of wire is held in a uniform 0.5 T magnetic field directed perpendicular to the plane of the loop. The radius of the loop is increasing at a constant rate of 2.5 cm/is. What emf is induced in the loop when the radius is 18 cm

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.