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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 -

    (A) 12% of 6500 J
    That would be 780 J (per second).

    (B)780 J/s (Watts)

  • general science -

    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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