David Letterman, a long time ago, had a race down a hallway with a fire extinguisher and a rolling office chair. As he shot the fire extinguisher one way, the chair zipped down the hallway. (Don’t try this at home!!) Which of Newton’s Laws was Dave demonstrating?

Heat is the total potential energy of a substance that can be transferred. true false

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.

How many joules of heat are required to raise thetemperature of 750 g of water from 11.0 °c to 19.0 °c?