A crate of physics textbooks is sliding across the room at 18 m/s what is the coefficient of friction that causes it to come to stop in 12 seconds?​

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

How is the gravitational force related to the distance between two objects?

Asher cycles 12 miles in 16 hours. what is his speed?