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Kaylis [27]
3 years ago
11

The speed of light in a vacuum is 3 x 108 miles/hour. true/false?

Physics
2 answers:
GarryVolchara [31]3 years ago
8 0
I'm guessing they rounded because it is technically 2.998 X 108 miles/hour

so I would go with true!
Leya [2.2K]3 years ago
3 0
That is false.

The speed of light in a vacuum is 3 x 10^8 m/sec.

hope this helps and have a great day :)



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81°.

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An object is 70 um long and 47.66um wide. how long and wide is the object in km?​
Ganezh [65]

Answer:

length =  7*10^(-8)km

width = 4.666*10^(-8) km

Explanation:

We know that:

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and

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or

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if we replace the meter in the first equation, we get:

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Now with this relationship we can transform our measures:

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L = 70*1*10^(-9)km = 7*10^(-8)km

And for width, we have 47.66um, this is 46.66 times 1*10^(-9)km, or:

W = 46.66*1*10^(-9)km = 4.666*10^(-8) km

7 0
2 years ago
A toaster draws 8 A of current with a voltage of 120 V. Which is the power used by the toaster
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7 0
3 years ago
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It is used as a vigilance mirror.

3 0
3 years ago
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