Which of the following would cause the force of kinetic friction to increase? A. An increase in uk
B. A decrease in ilk
C. An increase in us
D. A decrease in Is

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?