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3 years ago

PLEASE HELP MEE PLEASE!

Physics

1 answer:

Mariana [72]3 years ago

5 0

Answer:

<h3>Answer C. grams</h3>

Explanation:

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It takes 8 seconds for a pulley system to lift a load that weights 400N to a height of 10 m. How much power is required?.

mariarad [96]

Answer:

C. 500 watts

Explanation:

power is defined as the rate of work done

$power=\frac{work.done}{time}$

When a force causes a object to move, work is being done on the object by the force.

$work.done=force*displacement\\=400*10\\=4000J$

$power=\frac{4000J}{8s}\\=500 W$

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3 years ago

PLEASE HELP MEE PLEASE!​

PLEASE HELP MEE PLEASE!