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

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy