Which visible quality of smoke shows that it contains a lot of gas influencing the other particles? (a)the shade of the color is different in different places. (b)smoke usually has an unpleasant smell. (c)smoke rises out of very hot substances. (d)the shape of the smoke changes very easily.

(8%) problem 12. a bowling ball of mass mb 3 kg 's rolled down the lane with a velocity ofy-2/ m s lt strikes a single remaining pin mp 0.93 kg head on. after the collision the bowling ball has a velocity (in the same direction) of v2 1.1 m/s. = ▲ 33% part (a) write an expression for the velocity of pin in the horizontal direction after the impact, im ,, 33% part (b) what is the pins speed in ms? 33% part (c) assuming the coefficient of friction s μ,-0.1. how far in meters could the pin slide before stopping if it doesn't topple?