Which of the following is true for an electromagnetic wave? It requires a medium to travel.
It is a longitudinal wave.
It is a transverse wave.
None of these are true for an electromagnetic wave.

When a neutral charge, comes into contact with a positive charge they repel each other nothing happens the neutral charge becomes negative they attract each other

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

What causes the formation of ocean currents?