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prisoha [69]
4 years ago
13

A beam of light is transmitted through a medium with an index of refraction of 1.46. What is the speed of the light beam as it t

ravels through the medium?
Mathematics
1 answer:
jeyben [28]4 years ago
8 0

Answer:

The speed of light through the medium is 2.1 * 10^8 m/s

Step-by-step explanation:

In this question, we are asked to calculate the speed of light beam as it travels through a medium given the refractive index of the medium.

Mathematically;

n = c/v

where n is the refractive index, v is the speed of light through the medium and c is the speed of light in a vacuum.

From the question, we can identify that the refractive index is 1.46 and the speed of light through vacuum is 3 * 10^8 m/s

Rearranging the equation; we have;

v = c/n

v = (3 * 10^8)/1.46

v = 2.1 * 10^8 m/s

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slavikrds [6]

Answer:

\huge\boxed{n=1}

Step-by-step explanation:

In order to find the value of n that satisfies this equation, we can perform a series of algebraic steps on it to solve for n.

  • 8(2n-2) = 4- 4n
  • <em>Distribute in the 8 on the left side:</em>
  • <em />16n-16=4-4n<em> </em>
  • <em>Add 4n to both sides</em>
  • 20n-16=4
  • <em>Add 16 to both sides</em>
  • 20n = 20
  • <em>Divide both sides by 20</em>
  • n=1

Therefore, n=1 is the value of n that satisfies this equation.

Hope this helped!

6 0
3 years ago
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I need explanation + answer.
finlep [7]

Answer:

C. 22,400.

Step-by-step explanation:

62.9% = 0.629 as a decimal fraction.

Total number of employees in small businesses in the county

= 270 * 132.

So the estimated number with less than $1000 savings

= 270 * 132 * 0.629

= 22,417.

4 0
3 years ago
A group of 8 friends went to lunch and spent a total of $76, which included the food bill and a tip of $16. They decided to spli
Kisachek [45]

Answer:

$11.50 is being split among the 8 friends

Step-by-step explanation:

76 + 16 = 92

92/8 = 11.5

6 0
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The shipping fee is 3.5% of the cost of the items. If the shipping fee is $15.00, the cost of the items is:
MariettaO [177]

Answer:

105

Step-by-step explanation:

6 0
3 years ago
Ben sells homemade cards at a craft fair. He wants to earn more than $50 at the fair. He sells his cards for $2 and he has alrea
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Answer:

He must sell 8 cards to reach the minimum goal.

Step-by-step explanation:

Giving the following information:

He wants to earn more than $50 at the fair.

He sells his cards for $2 and he has already earned $36.

<u>First, we need to calculate the money required to reach the minimum goal:</u>

51 - 36= $15

<u>Now, we write the inequality:</u>

2*x >15

x= number of cards sold.

x>15/2

x> 7.5

He must sell 8 cards to reach the minimum goal.

7 0
3 years ago
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