After the discovery of the electron, scientists knew that atoms must also have positively changed particles because?

A. Atoms have mass

B. Atoms have electrical charge

C. Atoms have neutral charge

Give 3 examples of something with potential energy.

Explain how "elastic potential energy" dramatically changed the sport of pole vaulting when flexible fiberglass poles replaced stiffer wooden poles.

A member of the cross country team is training for the big race. She runs 7.85 km one afternoon. How many miles is this?

List three different emotions?

Which of newton's laws best explains why motorists should buckle up?

Why did the chicken cross the road.

A 98.1 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.69 rad/s. A monkey drops a 9.29 kg bunch of bananas vertically onto the platform.

7. A type of non-renewable energy would be: O wind O petroleum O water solar

A refrigerator is a system. The energy input into the refrigerator system (in the form of electricity) is the same as the amount of energy output from the system. Which of the following best describes the energy output of the system?

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.