A certain lead acid storage battery has a mass of 30 kg. Starting from a fully chargedstate, it can supply 5 amperes for 24 hours with a terminal voltage of 12 V before it is totallydischarged.a. If the energy stored in the fully charged battery is used to lift the battery with 100-percentefficiency, what height is attained? Assume that the acceleration due to gravity is 9.8 m/s2and is constant with height.b. If the energy stored is used to accelerate the battery with 100-percent efficiency, whatvelocity is attained?c. Gasoline contains about 4.5 x 107 J/kg. Compare this with the energy content per unitmass for the fully charged battery.
A certain lead acid storage battery has a mass of 30 kg. Starting from a fully chargedstate, it can supply 5 amperes for 24 hours with a terminal voltage of 12 V before it is totallydischarged.a. If the energy stored in the fully charged battery is used to lift the battery with 100-percentefficiency, what height is attained? Assume that the acceleration due to gravity is 9.8 m/s2and is constant with height.b. If the energy stored is used to accelerate the battery with 100-percent efficiency, whatvelocity is attained?c. Gasoline contains about 4.5 x 107 J/kg. Compare this with the energy content per unitmass for the fully charged battery.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Question
A certain lead acid storage battery has a mass of 30 kg. Starting from a fully charged
state, it can supply 5 amperes for 24 hours with a terminal voltage of 12 V before it is totally
discharged.
a. If the energy stored in the fully charged battery is used to lift the battery with 100-percent
efficiency, what height is attained? Assume that the acceleration due to gravity is 9.8 m/s2
and is constant with height.
b. If the energy stored is used to accelerate the battery with 100-percent efficiency, what
velocity is attained?
c. Gasoline contains about 4.5 x 107 J/kg. Compare this with the energy content per unit
mass for the fully charged battery.
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