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Physics 28 Online
kekeman:

Which of the following scenarios describes an object being acted on by a conservative force? A woman hikes up a mountain to a point 20 feet above ground. A dishwasher was pulled up to a window by a rope, using a pulley system. A feather falls from one end of a tube to the other inside a vacuum. A puck glides across and slowly comes to a stop on an ice rink.

kekeman:

I think it is " A feather falls from one end of a tube to the other inside a vacuum."

Rigo:

and why do you think that?

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