The mechanical power output of an electric motor is 3.80 hp. The motor is connected to a 120 V source and is 95.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Determine the following. (a) current (in A) delivered to the motor A (b) energy (in MJ) delivered to the motor by electrical transmission in 3.30 h of operation MJ (c) the cost to run the motor (in dollars) for 3.30 h, if the electric company charges $0.110/kWh

The mechanical power output of an electric motor is 3.80 hp. The motor is connected to a 120 V source and is 95.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Determine the following. (a) current (in A) delivered to the motor A (b) energy (in MJ) delivered to the motor by electrical transmission in 3.30 h of operation MJ (c) the cost to run the motor (in dollars) for 3.30 h, if the electric company charges $0.110/kWh

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The mechanical power output of an electric motor is 3.80 hp. The motor is connected to a 120 V source and is 95.0% efficient in converting power that it takes in by electrical
transmission into mechanical power. Determine the following.
(a) current (in A) delivered to the motor
A
(b) energy (in MJ) delivered to the motor by electrical transmission in 3.30 h of operation
MJ
(c) the cost to run the motor (in dollars) for 3.30 h, if the electric company charges $0.110/kWh

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