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3 years ago

5

A woman does 260 J of work to move a table 1.9 m across the floor. What is the magnitude of the force applied by the woman to th

e table if this force is applied in the horizontal direction?

1 answer:

balandron [24]3 years ago

4 0

Answer:136.8N

Explanation:

Work=260joules

Distance=1.9m force=?

Force=work/distance

Force=260/1.9

Force=136.8N

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Answer:

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Answer:

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2 years ago

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A)

In order to calculate the image position, we can use the lens equation:

$\frac{1}{p}+\frac{1}{q}=\frac{1}{f}$

where

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q is the distance of the image from the lens

f is the focal length

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p = 13 cm (object distance)

f = 40 cm (focal length, positive for a converging lens)

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B)

In order to calculate the image height, we use the magnification equation:

$\frac{y'}{y}=-\frac{q}{p}$

where

y' is the image height

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And the positive sign means the image is upright.

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3 years ago