Apuddle of water on the sidewalk evaporates and becomes water vapor. the water vapor travels through air and comes into contact with a cold mirror. what happens next? choose all that apply. a. it becomes a solid b. it becomes a liquid c. the molecules gain energy d. the molecules lose energy

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two