3 years ago

What is the total amount of energy stored in a 12-V, 75 A*h car battery when it is fully charged?

Physics

1 answer:

erma4kov [3.2K]3 years ago

8 0

Explanation:

Power is current times voltage. Power is also energy per time.

P = IV = E/t

Solving for energy:

E = V It

E = (12 V) (75 Ah) (3600 s / h)

E = 3,240,000 J

E = 3240 kJ

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How much heat is released as a 5.89 kg block of aluminum cools from 462 °C to 315 °C. The specific heat capacity of aluminum is

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