Light travels at an approximate rate of 1.9×10^5mi/sec.There are about 3.2× 10^7 seconds in a year.About how many miles does light travel in a a year? Write the answer in scientific notation. Express the answer to the exact decimal place
To calculate how many miles light travels in a year, we can multiply its speed (1.9×10^5 mi/sec) by the number of seconds in a year (3.2×10^7 sec):
(1.9×10^5 mi/sec) x (3.2×10^7 sec) = 6.08×10^12 mi
Therefore, light travels approximately 6.08×10^12 miles in a year.