Light travels at an approximate rate of 1.9×105 mi./sec. There are about 3.2×107 seconds in a year. About how many miles does light travel in a year? Write the answer in scientific notation. Express the answer to the exact decimal place.(1 point)

Answer 1

To find how many miles light travels in a year, we can multiply the speed of light by the number of seconds in a year.

Speed of light = 1.9 × 105 mi./sec
Number of seconds in a year = 3.2 × 107 seconds

Multiplying these values, we get:

1.9 × 105 mi./sec × 3.2 × 107 seconds = (1.9 × 3.2) × (105 × 107) mi.

= 6.08 × 1012 mi.

Therefore, light travels approximately 6.08 × 1012 miles in a year.