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VMariaS [17]
3 years ago
12

Light is incident on a piece of glass in air at an angle of 33 degrees from the normal. If the index of refraction of the glass

is 1.5, what is the angle in degrees that the refracted ray makes with the normal?

Physics
1 answer:
lilavasa [31]3 years ago
4 0
About 21 to 22 degrees 

as below

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A truck covered 2/7 of a journey at an average speed of 40
sertanlavr [38]

Answer:

The amount of time for the whole journey is 8 hours.

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So if the truck covered the remaining 200 miles at \frac{2}{7}, this means that \frac{5}{7} of the trip represents the 200 miles. So, to calculate the total distance traveled by the truck, you apply the following rule of three: if \frac{5}{7} of the route represents 200 miles, the integer 1 (which represents the total of the route), how many miles are they?

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So the total distance traveled is 280 miles. Since speed is the relationship between the space traveled by an object and the time used for it (speed=\frac{distance}{time}), then if the average of the entire trip was 35 mph and the distance traveled 280 miles, the time is calculated as:

time=\frac{distance}{speed}=\frac{280 miles}{35 mph}

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<u><em> The amount of time for the whole journey is 8 hours.</em></u>

<u><em /></u>

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7 0
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If you need anymore help feel free to ask me!

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