What concept does the image above show?

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?

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:

If the pressure in a gas is doubled while its volume is held constant. true or false