1. When the net force that acts on a baseball is 10 N, the ball accelerates at a rate of 66 m s. What is the mass of the
baseball? (Disregard any force due to
friction)
a) 0.15 kg
b) 1.0 kg
c) 6.6 kg
d) 10 kg
e) 66 kg

Phase changes are chemical changes. true or false

As the distance from a magnet increases, what happens to the magnet force?

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.