You grab a hot cookie sheet out of the oven this is an example of energy transfer.

A. Radiation-transfer of energy (heat) through space by electromagnetic rays.

B. Conduction-The transfer of heat through the matter by molecular energy (touch)

C. Convection-The transfer of heat by the movement of mass or substance (motion)

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?