Asatellite, moving in an elliptical orbit, is 360 km above earth's surface at its farthest point and 180 km above at its closest point. calculate (a) the semimajor axis and (b) the eccentricity of the orbit.

Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n

Ahockey puck sliding along frictionless ice with speed v to the right collides with a horizontal spring and compresses it by 3.0 cm before coming to a momentary stop.

A36,287 kg truck has a momentum of 907,175 kg • . what is the truck’s velocity