Which one of the following is an example of a difficulty caused by thermal expansion? A. milkshakes melting B. sagging power lines on a cold day O . buckled railroad tracks on a hot day D. paint chipping off the side of a house

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

(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?

In a house all the electrical wires run back to either a bank or a blank