A kid at the junior high cafeteria wants to propel an empty milk carton along a lunch table by hitting it with a 3.5 g spit ball. If he wants the speed of the 23 g carton just after the spit ball hits it to be .35 m/s, at what speed should his spit ball hit the carton?

Which of the following quantities are units of momentum? (there could be more than one correct choice.) a)n m b) kg s/m c) kg m/'s d)n-s 12 points] e) kg m2/s2

What happens in a global convection cell

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.