the rate of irradiate is 3.0x10^8 m/s. How long does it take it light to reach the planet from the sun, i beg your pardon is 1.5x10^11m away?
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You are watching: 3*10^-8 This question can be addressed using the standard equation that motion: street = velocity * time. We have two recognized parameters and also one unknown parameter; however, in order to settle the problem we must first rearrange the equation to deal with for time: time = street / velocity.

distance = 1.5x10^11m ...

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This question can be solved using the standard equation of motion: street = velocity * time. We have two recognized parameters and one unknown parameter; however, in bespeak to settle the trouble we must first rearrange the equation to resolve for time: time = distance / velocity.

distance = 1.5x10^11mvelocity = 3.0x10^8 m/s

Substituting right into the equation:

time = (1.5x10^11m)/( 3.0x10^8 m/s) = 500 seconds

Therefore, irradiate travelling at 3.0x10^8 meters per second takes 500 secs (8 minutes, 20 seconds) to reach the Earth, which is 1.5x10^11 meters far from the sun.

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