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JulijaS [17]
3 years ago
5

Light can travel 6.81×10^8 miles per hour. How many miles will it travel in one second?

Mathematics
1 answer:
Jlenok [28]3 years ago
3 0

Answer:

189166.666667 miles per second

Step-by-step explanation:

681000000 miles ÷ 3600

3600 seconds ÷ 3600

--------------------------------------

189166.666667 miles

1 second

----------------------------------

189166.666667 miles

second

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Find the magnitude of the vector from the origin to (8. - 6) and write the vector as the sum of unit vectors.
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The magnitude of the vector from the origin is 10

The unit vector in of the vector from the origin as   (8/10, -6/10

<u>Step-by-step explanation:</u>

<u>1.Finding the magnitude,</u>

we have the formula,

magnitude=√a²+b²

we have the values as a=8 and b=-6

Finding the magnitude we get,

magnitude=√a²+b²

magnitude=√8²+6²

magnitude=√100

magnitude=10

The magnitude of the vector from the origin is 10

<u>2.Finding the  unit vector</u>

Divide by the magnitude

Unit vector: (8/10, -6/10)

The unit vector in of the vector from the origin as   (8/10, -6/10

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Step-by-step explanation:

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