Question

if the sun is at a distance of 1.5 into 10 to the power 8 kilometre from earth how long does it take sunlight reach Earth if it moves at 3 into 10 to the power 8 metre per second ​

Answer 1

Answer:

500 seconds (8.3 minutes)

Explanation:

speed = distance/time

so time = distance/speed

1.5 x 10 ^8 km= 1.5 x 10^11 m

divide the distance in meters by 3 x 10 ^ 8

Answer 2

Answer : 8 min 20 second or 500 seconds.

Explanation: the sun is 1.5 ×10^8 km away from earth so we need to convert km into meter first therefore sun is 1.5×10^11 m away from earth

Now

Velocity = distance/time

time(t) = distance/velocity

t = 1.5 × 10^11 / 3× 10^8

t = 1.5 × 10^3 / 3

t = 500 seconds

Let's convert it into minutes 500 seconds = 480+20 seconds now 480/60 = 8 min 20 seconds.