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Bingel [31]
3 years ago
6

If 478 watts of power are used in 14 seconds, how much work was done?

Physics
1 answer:
sergiy2304 [10]3 years ago
7 0
" 478 watts " means 478 joules per second.

In 14 seconds, the total work or energy is (14 x 478) = <em>6,692 joules</em>
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Using formula of rest,

E=\dfrac{E_{0}}{\sqrt{1-\dfrac{v_{f}^2}{c^2}}}-\dfrac{E_{0}}{\sqrt{1-\dfrac{v_{i}^2}{c^2}}}

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