Posted by **kayla** on Sunday, March 3, 2013 at 6:02pm.

a river does 6500J of work on a water wheel every second.The wheels efficiency is 12 percent.A)How much work in joules can the axle of the wheel do in a second? B)What is the power output of the wheel?

- science -
**drwls**, Sunday, March 3, 2013 at 7:05pm
(A) 12% of 6500 J

That would be 780 J (per second).

(B)780 J/s (Watts)

- general science -
**oli**, Wednesday, February 11, 2015 at 8:58pm
a river does 6500J of work on a water wheel every second.The wheels efficiency is 12 percent.A)How much work in joules can the axle of the wheel do in a second? B)What is the power output of the wheel?

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