The distance of the earth from the sun is 149000000
km. How long will a sunray take to reach the earth if
it travels at a speed of 3.0 x 10 power 5 km/s?
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Answer:
Distance=149000000 km = 149×10 to the power 6 km
Speed= 3×10 to the power 5 km/s
Time=14×10^9/3×10^5
=14×10^4/3
=140000/3
=46666.66 sec
=46666.66/3600 hr
=12.96 hr
Rajan9421:
answer 4.96×10 power 2 sec
the value is almost same
OK
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