it takes 840s to walk completely around a circular track, moving at a speed of 1.20m/s? what is the radius of the track?

Drag each item into the proper state of matter category.

The radius of an atom is closest in size to a

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).