How does insulating the walls and ceiling of a doghouse model with different materials (none, foam, and cardboard) affect the inside temperature of the doghouse model?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?

Organ systems work to maintain homeostasis by creating energy to allow systems to function, releasing hormones to create or end body reactions, and eliminating waste to prevent illness. t or f