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20-05-2016
Biology

Answered

Brianna weighs 425 N. She climbs a flight of stairs to a height of 8 m. It takes her 6 seconds.

How much work does Brianna do when she climbs the stairs?

A.

3400 J

B.

53 J

C.

2550 J

D.

71 J

a

Verified Answer :

25-05-2016

a is the correct answer

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