An electron is held at a distance from a stationary, positively charged object.
If the electron is released, what energy change will take place?
A. Electric potential energy into kinetic energy
) B. Kinetic energy into electric potential energy

C. Electric potential energy into gravitational potential energy
D. Gravitational potential energy into thermal energy

Why is the use of carbon-14 limited

Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine