In a calorimetery experiment, a researcher may burn a sample of food, which heats a sample of water. This procedure
illustrates which energy transformation?
A. gravitational potential into kinetic
B. chemical potential into thermal
C. electric potential into gravitational potential
D. elastic potential into chemical potential

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane