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Mary tried to lift her couch by exerting 500 newto...
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Mary tried to lift her couch by exerting 500 newtons of force but it doesn’t budge. If the couch weighed 2,000 newtons, how much work did she do:
A.
0
B.
50 watts
C.
500 joules
D.
2000 joules
E.
0
F.
50 watts
G.
500 joules
H.
2000 joules
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