A750-newton person stands in an elevator that is
accelerating downward. the upward force of the
elevator floor on the person must be
(1) equal to 0 n (3) equal to 750 n
(2) less than 750 n (4) greater than 750 n

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.

Ais not a mixture. colloid compound suspension solution