Abeam of light is propagating in the x direction. the electric-field vector (a) can oscillate in any arbitrary direction in space. (b) must oscillate in the z direction (c) must oscillate in the yz plane (d) must oscillate in the x direction. (e) must have a steady component in the r direction.

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

Distinguish between a transverse wave and a longitudinal wave.