How much heat energy is tequired to raise the temperature of 3 kg of copper from 0

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.

If y gets smaller as x gets bigger and y have an relationship?

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat