A60.0 kg girl stands up on a stationary floating raft and decides to go into shore. she dives off the 180 kg floating raft with a velocity of 4.0 m/s [w]. ignore the substantial friction real objects in water experience.
a) what is the momentum of the girl as she is diving?
b) what is the momentum of raft as the girl is diving?
c) what is the final speed of the raft just after the girl dives?

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n

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.

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical