Why does the earth revolves around the sun

What is the maximum acceleration of the wing tips, in units of g?

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

Why should seat belts not be mandatory quick plz