Posted by
**colleen** on
.

What is the potential energy for an 800 kg elevator at the top of Chicago's Sears tower , 440 m above street level? Let the energy be zero at street level.

Thursday

March 30, 2017
Posted by
**colleen** on
.

What is the potential energy for an 800 kg elevator at the top of Chicago's Sears tower , 440 m above street level? Let the energy be zero at street level.

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