2 years ago

What is used to block the UV light during screen development process to create a stencil in the emulsion

1 answer:

4 0

Answer:

Invisible UV energy reacts with emulsion sensitizer and hardens the stencil so it won't dissolve with water and rinse down the drain

Explanation:

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Suppose that you are swimming in a river while a friend watches from the shore. In calm water, you swim at a speed of 1.25 m/s .

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Answer: The observing friend will the swimmer moving at a speed of 0.25 m/s.

Explanation:

Let S be the speed of the swimmer, given as 1.25 m/s

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Note that this speed is the magnitude of the velocity which is a vector quantity.

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Hence the resultant velocity is given as, $S_{R}$ = S — S 0 $S_{0}$

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Therefore, the observing friend will see the swimmer moving at a speed of 0.25 m/s due to resistance produced by the current of the river.

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