During a collision with a wall, the velocity of a 0.200 kg ball changes from 12 m/s toward the wall (in the positive direction of x-axis) to 7 m/s away from the wall. If the time the ball was in contact with the wall was 54 ms. The average force applied to the ball is

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

What determines the amount of inertia an object has