Astone sphere of radius 7.00 m rests in a flat field. relative to the ground, what is the gravitational potential energy of a 90.0-kg person sitting on the very top of the sphere?

What is a costume plot? why is it important to a film or theater production?

The law of reflection states that the angle of reflection is equal to the angle of

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).