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A metal pipe with a wrap-around electric tape acts as a hot-water heater when the tape is supplied with 60 watts per inch of pipe

A metal pipe with a wrap-around electric tape acts as a hot-water heater when the tape is supplied with 60 watts per inch of pipe length (1.0 watt=3.4 Btu/hrmemorize), Water entering at 70 has a flow rate of 1.0 gpm (8.34 lbm= 1.0 gallon for water--memorize). Determine the pipe length (feet) so that the water exits at 110 F

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