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Jlenok [28]
3 years ago
9

When you add heat energy the molecules move ______ and _____

Physics
2 answers:
NISA [10]3 years ago
7 0
They move faster and move farther apart
Natasha2012 [34]3 years ago
3 0
The answer is (Around and collide)
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A ray is incident on a film of thickness t and the index of refraction n=1.6 at an angle θ = 35 degrees. Find the angle of refra
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Answer

Given,

refractive index of film, n = 1.6

refractive index of air, n' = 1

angle of incidence, i = 35°

angle of refraction, r = ?

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n' sin i = n sin r

1 x sin 35° = 1.6 x sin  r

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Angle of refraction is equal to 21°.

Now,

distance at which refractive angle comes out

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t be the thickness of the film.

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t = 2.26 mm

Hence, the thickness of the film is equal to 2.26 mm.

4 0
3 years ago
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A train travels 225 km in 2.5 hours. What is the trains average speed
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