Which is the correct equation for calculating the kinetic energy of an object?

COM

1

1

KE = mgh

KE = mu?

KE = at

KE =

492

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A firebox is at 650 K, and the ambient temperature is 250 K. The efficiency of a Carnot engine doing 146 J of work as it transports energy between these constant-temperature baths is 61.5%. The Carnot engine must take in energy 146 J/0.62 = 237.

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