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Gennadij [26K]
4 years ago
13

What two things must occur in order for a light Ray to refract when it strikes the boundary of a different medium?

Chemistry
1 answer:
Morgarella [4.7K]4 years ago
7 0

Answer:

When light passes from one transparent medium to another, the rays are bent toward the surface normal if the speed of light is smaller in the second medium than in the first. The rays are bent away from this normal if the speed of light in the second medium is greater than in the first.

Explanation:

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Desperate pldease hurry<br> Why aren’t fuel-cell vehicles widely available yet?
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There's virtually no pure hydrogen on Earth because it's so reactive. Most hydrogen is made from methane [natural gas] in a process that produces carbon dioxide and other greenhouse gases. Hydrogen can also be made from water using electrolysis, but that requires electrical energy.

Explanation:

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What are the four energy sublevels electrons can be found in?
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The answer is B. s, p, d, f
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3 years ago
PLEASE HELP WILL GIVE BRAINLIEST!!!
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Answer: It's the anode broski (B)

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3 years ago
I NEED THE ANSWER IMMEDIATELY!!! Pls helppp
Wewaii [24]

Answer:

turgor pressure can be done in a lab or a self test.

turgor pressure is key to the plant’s vital processes. It makes the plant cell stiff and rigid. Without it, the plant cell becomes flaccid. Prolonged flaccidity could lead to the wilting of plants.

Turgor pressure is also important in stomate formation. The turgid guard cells create an opening for gas exchange. Carbon dioxide could enter and be used for photosynthesis. Other functions are apical growth, nastic movement, and seed dispersal.

Explanation:

  • salt is bad for turgor pressure.
  • Turgidity helps the plant to stay upright. If the cell loses turgor pressure, the cell becomes flaccid resulting in the wilting of the plant.
  • The wilted plant on the left has lost its turgor as opposed to the plant on the right that has turgid cells.
7 0
3 years ago
A tank contains a mixture of helium, neon, and argon gases. If the total pressure in the tank is 490. mmHg and the partial press
OleMash [197]

Answer: The partial pressure of neon is 173 mmHg

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

p_{total}=p_A+p_B+p_C

Given : p_{total} =total pressure of gases = 490 mm Hg

p_{He} = partial pressure of Helium = 215 mmHg

p_{Ar} = partial pressure of argon = 102 mm Hg

p_{Ne} = partial pressure of neon= ?

p_{total}=p_{He}+p_{Ar}+p_{Ne}

490=215+102+p_{Ne}

p_{Ne}=173mmHg

Thus partial pressure of neon is 173 mmHg

5 0
3 years ago
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