Consider the roller coaster on the track. if you want to increase the kinetic energy of the roller coaster as it proceeds through the course, what is the first thing you should do?
a) increase the height at point a.
b) decrease the height at point a.
c) increase the height at point b.
d) decrease the height at point b.

Amachinist needs to remove a tight fitting pin of material a from a hole in a block made of material b. the machinist heats both the pin and the block to the same high temperature and removes the pin easily. what statement relates the coefficient of thermal expansion of material a to that of material b? a) the situation is not possible, heating block b will shrink the hole in the material as the material expands with increasing temperatureb) material b has the same coefficient of expansion as does material ac) material b has a negative coefficient of expansion and a has a positive coefficient of expansiond) material a has a greater coefficient of expansion than does material be) material b has a greate

Jackson is designing a new heater, and he wants to experiment with different thermally conductive materials. which of these materials would be useful in conducting heat?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.