For an object at rest, the normal force equals the gravitational force. what is the sum of these forces called? [ ] net force [ ] unbalanced force [ ] inertia [ ] potential force

Sum of these forces is called net force.

Explanation:

When an object is at rest, the forces acting on it are normal force and gravitational force. The normal force act in upward direction while the gravitational force acts in downward direction.

In this case, for an object at rest, the normal force equals the gravitational force. The sum of these forces is called net force. The overall forces acting on the object in any direction is called net force.

Hence, the correct option is (a) '' net force''.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2