1) Students watched a cartoon either alone or with others and then rated how funny they found the cartoon to be. Independent Variable: Dependent Variable:

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.