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Refer to Example 7 on page 225. The average distance from Earth to the Moon is about3.84×108 meters. How long would it take a radio signal traveling at the speed of light to cover that distance?

Short Answer

Expert verified

The time taken for a radio signal traveling at the speed of light to cover that distance is1.28 seconds.

Step by step solution

01

Step 1. Given Information.

Given light travels at a speed of about 3.00×108m/s. The average distance from Earth to the Moon is about 3.84×108 meters.

The time taken for a radio signal traveling at the speed of light to cover that distance is to be determined.

02

Step 2. Explanation.

The time taken to cover a distance d at a speed s is given byt=ds .

Plugging the values in the equation:

t=dst=3.84×1083.00×108t=1.28seconds

03

Step 3. Conclusion.

Hence, the time taken for a radio signal traveling at the speed of light to cover that distance is 1.28 seconds.

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