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September 2017, Week 3

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Subject:
FW: Hi , here's your MCAT Question of the Day!
From:
Kemile A Jackson <[log in to unmask]>
Date:
Wed, 20 Sep 2017 14:03:58 +0000
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[MCAT Question of the Day, Click Display Images To See]


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Cranium
A construction worker uses a crane to vertically lift an object weighing 2000 N to the top of a platform at a constant rate. If it takes 30 seconds to lift the object 150 meters, what is the rate of energy consumed by the motor in the crane?

A. 5.0 kW

B. 8.0 kW

C. 10.0 kW

D. 12.0 kW

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