SOLUTION: The distance from the Earth to the Sun is 1.496×10^11 metres.
The speed of light is 3×10^88 metres per second.
Show that, correct to 3 significant figures, light will take 0.139
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Question 1074485: The distance from the Earth to the Sun is 1.496×10^11 metres.
The speed of light is 3×10^88 metres per second.
Show that, correct to 3 significant figures, light will take 0.139 hours to travel from the Sun to the Earth.
Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The distance from the Earth to the Sun is 1.496×10^11 metres.
The speed of light is 3×10^88 [sic] --- it's 3e8 m/sec --- metres per second.
Show that, correct to 3 significant figures, light will take 0.139 hours to travel from the Sun to the Earth.
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d = r*t
t =~ d/r = 1.496e11/3e8 seconds = 1.496e3/3 seconds
1 hour = 3600 seconds
t =~ 1496/(3*3600) hours
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
CORRECTION: The speed of light is 3×10^88 3x10^8 metres per second.
, hour, to three significant figures.
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