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Paul [167]
3 years ago
8

The speed of light in a vacuum is 2.99x10^8 m/s. calculate its speed in miles per hour.

Physics
1 answer:
34kurt3 years ago
6 0
You'll never get the correct answer without the correct conversion factor. Note carefully that you have no decimal. It should be 
<span>1 km = 0.6214 miles </span>
<span>1000 m = 1 km </span>
<span>60 seconds = 1 minute </span>
<span>60 minutes = 1 hour. </span>
<span>2.998E8 m/s x (1 km/1000m) x (0.6214 miles/km) x (60 sec/min) x (60 min/hr) = ?</span>
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So looking at the problem, you are going to want to start by finding a common denominator (1) in this case: yb, and combining like terms (2). You are then going to want to multiply both sides by (yb) as the reciprocal to the fractions (3).
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3 years ago
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2 years ago
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Answer:

s₁ = 240,000 km

Explanation:

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s = s₁ + s₂

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Therefore,

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