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19 November, 03:02

A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 times 10 Superscript 5 miles per second.

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  1. 19 November, 03:18
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    Number of miles traveled by light in a light-year is 5.952 * 10^12 miles

    Step-by-step explanation:

    Step 1: Find the number of miles (distance) in a light year by using the formula for speed = Distance/Time

    ⇒ Distance = Speed * Time

    = 1.86 * 10^5 * 1 yr (convert to seconds)

    = 1.86 * 10^5 * 365 days * 24 hrs * 60 mins * 60 sec

    = 1.86 * 10^5 * 31,536 * 10³

    = 1.86 * 3.2 * 10^5 * 10^7

    = 5.952 * 10^12 miles
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