la. A lawn tool is powered by a 56 volt, 2.5 Ah (amp-hour) battery. When fully charged what is the equivalent in gasoline (gal) of the energy stored in the battery if gasoline has an energy content of 120,300 Btu/gal? b. If the battery is fully charged and powers the DC motor on the tool at the rate of 280 Watts, estimate how long (minutes) this motor will operate before the battery is discharged.

la. A lawn tool is powered by a 56 volt, 2.5 Ah (amp-hour) battery. When fully charged what is the equivalent in gasoline (gal) of the energy stored in the battery if gasoline has an energy content of 120,300 Btu/gal? b. If the battery is fully charged and powers the DC motor on the tool at the rate of 280 Watts, estimate how long (minutes) this motor will operate before the battery is discharged.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 62P: A small series-wound dc motor is operated from a 12-V car battery. Under a normal load, the motor...

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