Suppose you supply energy to a machine at a rate of 700 w and that the machine converts 560 j into heat every second. At what rate does the machine do work?

Question

Suppose you supply energy to a machine at a rate of 700 w and that the machine converts 560 j into heat every second.  At what rate does the machine do work?

anonymous · Answer

ok

eficiency of machine = (Pout/Pin) x 100%
eficiency of machine = (500/700) x 100%
eficiency of machine  = 71.42 %

anonymous · Answer

efficiency of machine = (Pout/Pin) x 100%
efficiency of machine = (500/700) x 100%
efficiency of machine  = 71.4235 %

anonymous · Answer

good job @umartouseef  :)

anonymous · Answer

thanx gerryliyana