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A light-year is the distance light travels in one year, at a speed = 2.998 x 10^8 m/s.
(a) How many meters are there in 1.00 light years?
(b) An AU is the average distance from the Sun to the Earth, 1.50 x 10^8. How many AU are there in 1.00 light-year?
(c) What is the speed of light in AU/h?

Answer :

A. 7.57×10^16 m
B. 6.31×10^4 AU/ly
C. 7.19 AU/h

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