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The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?

The law of reflection states that the angle of reflection is equal to the angle of