An experimenter exposed students to one hour of soft, intermediate, or loud noise and then tested their ability to solve puzzles. what was the independent variable in this experiment?

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?