tee0226 tee0226
  • 05-09-2014
  • Mathematics
Answered

Light travels at the speed of approximately 3.0 × 108 meters per second. Find the time in minutes required for light to travel from the sun to Earth (an approximate distance of 1.5 × 1011 meters). 



Answer :

pepe11
pepe11 pepe11
  • 06-09-2014
speed = distance / time => time = distance / speed
speed = 3x10^8 x 60 = 180x10^8 m per minute
time = 1.5x10^11/180x10^8 = 150x10^9/180x10^8 = 5/6x10 = 8,3 minutes
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