Describe what a high and low frequency electromagnetic wave look like:

Which of the following correctly describes the early view of catastrophism?

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

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).