A 7.1 kg object hangs at one end of a rope that is attached to a support on a rail road boxcar

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?