Select all that apply 5. Newton's 2nd law must use (F=ma)

a. The friction force

b. The net force

C. The applied force

d. The normal force.

b

Explanation:

acceleration is directly proportional to the net force and inversely proportional to the mass

second mirror gathers light from a faraway object and reflects it to another mirror. - a.

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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