A student is riding their bike to school. The bike and the student together are 75 kg and possess 250 J of Kinetic energy. At what speed is the
student riding?

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: