What determines the atomic number of an atom?

O A. The mass

O

B. The number of neutrons

O

O

C. The charge

D. The number of protons

7. If a boulder is raised above the ground 14. so that its potential energy with respect to the ground is 100 J, and then it is dropped, what will its kinetic energy be just before it hits the ground

If a magnetic field is to exert a force on a current-carrying wire, the field must have some vector component:

Explain how high energy electrons are used in electron transport

Which of these is an effect of space travel? muscle shrinkage decreased bone density bone density increase increase in muscle mass

The movement of thermal energy from a warmer object to a cooler object is called

A force is applied to a 13.0 kg wagon to pull it down the sidewalk at a constant speed. The coefficient of kinetic friction is 0.65. Considering the resulting frictional force, what is the magnitude of the applied force?

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planers in orbit around the Sun.

What wave-like property of light causes it to bend when encountering an opening? A. Reflection B. all the above c. Refraction d. none of the above e. diffraction

Which of the following statements describe sliding friction? Select all that apply. 1.) a force that causes an object to increase speed 2.) a force in which one of the objects involved must be a liquid or a gas 3.

What do a broken rode and a volcano eruption have in common