Question

The distance between the earth and sun is 1.5 x 108 kilometers and the speed of light is 3.00 x 108 meters per second. Calculate the time, in minutes, it takes for light to travel from the sun to earth. Round your answer to the correct number of significant figures (consider all conversion factors to be exact numbers), and be sure to include units in your answer in the form: "

Answer 1

Answer:

time = 8.3333 minutes.

Explanation:

distance between earth and sun = 1.5 * $10^{8}km$

speed of light = 3* $10^{8}m/s$

convert the distance unit from km to m so we can have uniform units.

distance between earth and sun = 1.5 *$10^{8}*1000$m

distance between earth and sun = 1.5 * $10^{11}$m

speed = distance /time

time = distance / speed

time = $\frac{1.5*10^{11} }{3*10^{8} }$

$= 0.5*10^{3}$

time =500 sec

time = 500/60 minutes

time = 8.3333 minutes.