A copper rod with a mass of 0.300 kg slides on parallel horizontal steel rails, 0.400 m apart, and carries a current of 13.0 A. The coefficient of friction between the rod and rails is 0.360. What vertical, uniform magnetic field is needed to keep the rod moving at a constant speed

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?

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: