Two identical point charges in outer space are held apart at a distance d. as soon as the charges are released, each begins moving at an acceleration a. if instead they were released at a distance d/2, the acceleration of one charge would be
a. 2a
b. 4a
c. a/2
d. a/4

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.