A 120-V motor has mechanical power output of 2.20 hp. It is 91.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor. A (b) Find the energy delivered to the motor by electrical transmission in 2.50 h of operation. MJ (c) If the electric company charges $0.110/kWh, what does it cost to run the motor for 2.50 h
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, b) 
, c) 
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