94.1 MHz is the frequency of a radio station that broadcasts out of Atlanta? What is the wavelength of this radio wave?
a. 3,188,097.8 m
C. 3.2 m
b. 300,000,000 m
d. 3,188.1 Hz

He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)

Based on this activity, is kinetic energy always transformed into potential energy?