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Radio Waves travel at the speed of light, which is 3.00X108 m/s. How many kilometers will a radio message to outer space travel in exactly one year? (365.24 days=1 year)

Question

Radio Waves travel at the speed of light, which is 3.00X10m/s. How many kilometers will a radio message to outer space travel in exactly one year? (365.24 days=1 year) 

check_circleAnswer
Step 1

Given,

Speed of radio wave = 3 × 108 m/s

Time = 1 year

Firstly, converting year (yr) to seconds (s) :

Conversion factors: 1 yr = 365.24 day
1 day 24 hr
1hr 3600 s
365.24 day 1 yr = 365.24 day
1 yг
1 yr
24 hr
365.24 day
365.24 day
8765.76 hr
1 day
8765.76 hr 3600 s8765.76 hr = 31556736 s
1 hr
:. 1 yr 31556736 s
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Conversion factors: 1 yr = 365.24 day 1 day 24 hr 1hr 3600 s 365.24 day 1 yr = 365.24 day 1 yг 1 yr 24 hr 365.24 day 365.24 day 8765.76 hr 1 day 8765.76 hr 3600 s8765.76 hr = 31556736 s 1 hr :. 1 yr 31556736 s

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Step 2

Therefore, distance travelled by radio message to outer spa...

Distance
Speed
Time
Distance
Speed x Time
Distance
3 x 108 m/s x 31556736 s
Distance 9.47 x 1015 m
10 3 km
Distance
(1 m
103 km)
9.47 x 1015 m x
1 m
Distance 9.47 x
1012 km
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Distance Speed Time Distance Speed x Time Distance 3 x 108 m/s x 31556736 s Distance 9.47 x 1015 m 10 3 km Distance (1 m 103 km) 9.47 x 1015 m x 1 m Distance 9.47 x 1012 km

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