A child with a mass of 23 kg rides a bike with a mass of 16 kg at a velocity of 3 m/s as they roll down the street together. How much momentum does the child have by
himself? (Do not write units of measure and ROUND to only 1 decimal place)

What does the law of conservation of mass state?

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.

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above