Two masses, m1 = 1.8 kg and m2 = 1.3 kg, are ar on a track set at a 25 degree incline. they are attached by a string passing over a pulley. the system is released and the masses travel a distance h = 1.0 at a constant speed. what is the work generated by friction?

This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.