The chart shows data for four heat engines

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.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

How will the system respond to a temperature increase?