1. A force that pushes forward on an object speeds the object up. A force that pushes backwards slows the object down. What effect does a force that is perpendicular to the object's motion do?

If pushing forward speeds it and pushing backward slows it down then force perpendicular to the object will keep it stationary and resist it's motion

Explanation:

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b.

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the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.