Suppose that the amount of heat removed when 1.4 kg of water freezes at 0.0 oc were removed from ethyl alcohol at its freezing/melting point of -114.4 oc. how many kilograms of ethyl alcohol would freeze?

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.

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

Madison lives near the ocean. she’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable: