What velocity must a 1240 kg car have in order to have the same momentum as a 3660 kg truck traveling at a velocity of 12 m/s to the
west?

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

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.

Describe uniform velocity and variable velocity in short