Which lanthanide forms a compound that enables you to see red on a
computer screen!

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.