A light-year is the distance that light travels in one year.The speed of light is 3.00 × 10⁸ m/s.How many miles are there in one light-year? (1 mi = 1609 m,1 y = 365 d)

Question

Quizplus · Accepted Answer

To find the distance in miles that light travels in one year, you multiply the speed of light by the number of seconds in a year and then convert meters to miles. The calculation is as follows: $3.00 \times 10^{8} \, \text{m/s} \times 365 \, \text{days} \times 24 \, \text{hours/day} \times 3600 \, \text{seconds/hour}$ gives the distance in meters. To convert to miles, divide by 1609 m/mi. The correct answer is approximately $5.88 \times 10^{12}$ miles.

A Light-Year Is the Distance That Light Travels in One