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In-s [12.5K]
3 years ago
13

Radio waves travel at the speed of light, which is 3X10^8 m/s. How many minutes does it take for a radio message to reach earth

from Saturn if Saturn is 7.9X10^8 km from earth?
Chemistry
1 answer:
Mandarinka [93]3 years ago
4 0

Answer:

43.89 min

Explanation:

Given that:-

The speed of light = 3.00\times 10^8\ m/s

The distance = 7.9\times 10^8\ km

The conversion of distance in km to distance into m is shown below as:-

1 km = 1000 m

So,  

Distance = 7.9\times 10^8\times 1000\ m=7.9\times 10^{11}\ m

The relation between speed distance and time is shown below as:-

Speed=\frac{Distance}{Time}

Thus,  

3.00\times 10^8=\frac{7.9\times 10^{11}}{Time}

300000000\times time=10^{11}\times \:7.9\ s

Time = 2633.33 seconds

Also, 1 s = 1/60 min

So,  

Time=\frac{2633.33}{60}\ min=43.89\ min

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