A 4 kg ball is traveling to the right at 2 m/s. A 6 kg ball is traveling to the left at 4 m/s. . If the velocity of the 6 kg ball is 0.8 m/s to the left after the collision, what is the velocity of the 4 kg ball after the collision?

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

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 of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.