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Sonja [21]
3 years ago
8

Help ASAP. Giving brainliest to the correct answer.

Physics
2 answers:
larisa86 [58]3 years ago
6 0

Answer: It's is A and C

Explanation:

What happens is that light slows down when it passes from the less dense air into the denser glass or water. This slowing down of the ray of light also causes the ray of light to change direction. It is the change in the speed of the light that causes refraction.

Paladinen [302]3 years ago
3 0

I think the answer is C. I am not be right

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A 10.0 L balloon contains helium gas at a pressure of 660 mmHg . What is the final pressure, in millimeters of mercury, of the h
Ksivusya [100]

Answer:

(a)= 264mmHg

(b)= 2000mmHg

(c)474.82mmHg

(d)= 511.63mmHg

Explanation:

the question deals with boyles law, which states that the volume of a given mass of gas at constant temperature is inversely proportional to its pressure

V ∝ 1/P

P₁V₁ = P₂V₂

making V₂ as the subject of formular

P₂ = P₁V₁/ V₂

with a volume of  25.0L

P₂ = 660×10 / 25

= 264mmHg

with a volume of 3.30 L

P₂  = 660 × 10 / 3.30

= 2000mmHg

with a volume of 13900 mL

= 13.9L

P₂  =660× 10 / 13.9

474.82mmHg

with a volume of 12900 mL

P₂ =660×10 / 12.9

= 511.63mmHg

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s344n2d4d5 [400]
I would say B but I’m not 100%
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Hope this helps! I would greatly appreciate a brainliest! :)
3 0
3 years ago
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