When a skateboarder rides down a hill, the normal force exerted on the skater by
the hill is

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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measure their densities same density, same sub

part 1: which substance has a higher solubility?

a

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by