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22 September, 08:33

A 12 Volt lead-acid car battery, engineered for "up to 500 or more charge/discharge cycles," has a rating of 95.0 Ampere-hours. It sells for $ 126.00. If initially fully charged, what is the total electrical energy that the battery can deliver before it needs to be recharged?

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  1. 22 September, 12:03
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    Electrical energy = potential x charge

    potential = 12V,

    Charge = 95 amp-hours

    = 95 x 60 x 60 coulomb

    = 342000 coulomb

    Electrical energy stored in battery = 342000 x 12

    = 4104000 J

    = 4.1 x 10⁶ J.
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