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Mariulka [41]
3 years ago
12

How does the thickness of paint sprayed on a surface change when the sprayer is held twice as far away?

Physics
1 answer:
Gre4nikov [31]3 years ago
7 0

Answer:

Explained

Explanation:

It depends upon the spray pattern, but if it is an angular fan and the speed of the painter remains the same, then it will be half of the thickness. A round pattern will end up with approximate one third coverage.

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AveGali [126]

Explanation:

For this problem, use the first law of thermodynamics. The change in energy equals the increase in heat energy minus the work done.

ΔU=Q−W

We are not given a value for work, but we can solve for it using the force and distance. Work is the product of force and displacement.

W=FΔx

W=3N×2m

W=6J

Now that we have the value of work done and the value for heat added, we can solve for the total change in energy.

ΔU=Q−W

ΔU=10J−6J

ΔU=4J

Answer is 4J

i think this may help you very much

3 0
2 years ago
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Answer:

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Explanation:

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