The Toyota Prius has a drag coeffi cient of 0.25, a frontal area of 23.4 ft2, and an empty weight of 3042 lbf. Its rolling resistance coeffi cient is Crr 5 0.03, that is, the rolling resistance is 3 percent of the normal force on the tires. If rolling freely down a slope of 88 at an altitude of 500 m, calculate its maximum velocity, in mi/h.

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.