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How much power does a water pump expend when a 3920 J water is pumped in 3 minutes?

Sagot :

[tex]\tt{\huge{\blue{Explanation:}}}[/tex]

The power of an object doing a work W in a given time t is given by

[tex]\boxed{P = \frac{W}{t}}[/tex]

where:

P = power

W = work

t = time

[tex]\tt{\huge{\red{Solution:}}}[/tex]

Converting minutes to seconds

t = 3 min × (60 s / 1 min)

t = 180 s

Solving for P

[tex]P = \dfrac{W}{t}[/tex]

[tex]P = \dfrac{\text{3920 J}}{\text{180 s}}[/tex]

[tex]\boxed{P = \text{21.78 W}}[/tex]

Therefore, the amount of power expended by the water pump is 21.78 W.

[tex]\\[/tex]

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