Vibration of an object about an equilibrium point is called simple harmonic motion when the restoring force is proportional to? a. time b. displacement c. a spring constant d. mass

B.displacement

Explanation:

A simple harmonic motion is a motion which describes a particle subdued to a restoring force proportional to its displacement.

The restoring force is directly proportional to the displacement and acts in the direction opposite to that of displacement.

A periodic motion is generated, this means that the motion is repeated every certain interval of time.

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.

probably not if net force is zero