Answer to Question #341877 in Astronomy | Astrophysics for Jifar

Question

A "light-year" is the distance light (speed = 2.998 108 m/s)travels in one year.

(a) How many meters are there in 4.00 light-years? m

(b) An astronomical unit (AU) is the average distance from the Sun to Earth, 1.50 108 km. How many AU are there in 4.00light-year? AU

(c) What is the speed of light in AU/h? AU/h

Answer 1

a)

$94.6\cdot 10^{14}~m.$

b)

252300 AU.

c)

7.21 AU/h.