Answer:
5.67648 * 10^12 miles
Step-by-step explanation:
Given that:
Speed of light = 1.8x10^5 mi per sec.
The number of miles in a light year will be :
Distance = speed * time
The time in seconds in a year is :
365 days * 24 hours * 60 mins * 60 sec = 31536000 seconds
Hence,
The number of miles in a light year :
1.8x10^5 * 31536000 = 5676480000000
= 5.67648 * 10^12 miles
