Pause the skater's motion at any point other than the very top of the ramp or the very bottom. Take note of the kinetic and potential energy at that point and write the values below. We know the mass and the height at this point, as well. Using the formulas from your formula sheet, calculate the skater's velocity at this point. Show all work below. Mass - 55kg
Height - 5m
Kinetic - 1055.3 J
Potential - 1633.3 J

Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.

What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%

Suppose the house in question 3 is located in cleveland where the annual average solar flux is 160 w/m2 . if 10 m2 of solar panels operating at 20 percent efficiency were installed on this house to collect and store solar energy in the form of hot water: