Question

The star Sirius is about 8.1 *10^13 km from the earth. Assuming that light travels at 3.0 *10^5 km per second, find how long light from Sirius takes to reach the earth.

Answer 1

Hey Dear,

◆ Answer -

Time = 8.556 years

● Explaination -

# Given -

Distance, s = 8.1×10^13 km

Speed, c = 3×10^5 km/s

# Solution -

Time taken by light from Sirius to reach earth is calculated by -

Time = distance / velocity

t = s / c

t = 8.1×10^13 / 3×10^5

t = 2.7×10^8 s

Let's convert it into years -

t = 2.7×10^8 / 31536000

t = 8.556 years

Therefore, 8.56 years will be taken by light from Sirius to reach earth.

Thanks for asking, friend.

Answer 2

Step-by-step explanation:

ans is that thankss youvery much