science
posted by kayla .
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
(A) 12% of 6500 J
That would be 780 J (per second).
(B)780 J/s (Watts) 
general science 
oli
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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