Suppose a child walks from the outer edge of an isolated rotating merry-go round to the inside; assume no external forces are applied to the system. Does the angular velocity of the merry-go-round increase, decrease, or remain the same?.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.

It would appear up top when they ask he question