04 A car is travelling along a level road.
O Complete the sentence by putting a cross ( ) in the box next to your answer.
When the velocity of the car is constant, the force of friction on it is
A) Zero
O B) greater than the driving force
O C) smaller than the driving force
OD) the same size as the driving force

Atomic nuclei of almost all elements consist of

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

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.