Question

quiz #1 begin date: 9/22/2025 12:01:00 am due date: 9/28/2025 11:59:00 pm end date: 9/28/2025 11:59:00 pm problem 1 in the units used in the u.s., the speed of light is roughly 670 million mi/hr. using the information in the problem statement, find approximately how many miles there are in a light - year. miles in a light - year = mi grade summary deductions potential

Explanation:

Step1: Know the number of hours in a year

There are 24 hours in a day and 365 days in a non - leap year. So the number of hours in a year $h=24\times365 = 8760$ hours.

Step2: Calculate the distance in miles in a light - year

The speed of light is $v = 670$ million mi/hr. The distance $d$ in a light - year (distance light travels in a year) is given by the formula $d=v\times h$. Substitute $v = 670000000$ mi/hr and $h = 8760$ hr into the formula: $d=670000000\times8760=5869200000000$ miles.

Answer:

$5869200000000$ mi