A 4.5 kg block is pulled across a horizontal surface that has a coefficient of kinetic friction of 0.40. a. What is the force of friction exerted by the surface on the block? b. If the block is pulled by a 25 N force, what is the net force acting on the block? c. What is the acceleration of the block? Be sure to draw a free-body diagram.

If you want to change the pitch of a sound, you have to change the

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.