Light travels at an approximate rate of 1.9×10^5 mi./sec. There are about 3.2×10^7 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.
To calculate the distance light travels in one year, we need to multiply the speed of light by the number of seconds in a year.
Distance traveled by light in one year = Speed of light x Number of seconds in a year
= (1.9×10^5 mi./sec) x (3.2×10^7 seconds)
= 6.08×10^12 miles.
Therefore, light travels approximately 6.08×10^12 miles in one year.
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 = 1.9×10^5 mi./sec
Number of seconds in a year = 3.2×10^7 seconds
To calculate the distance traveled in a year, we multiply the speed of light by the number of seconds in a year:
Distance = Speed × Time
Distance = (1.9×10^5 mi./sec) × (3.2×10^7 seconds)
= 6.08×10^12 mi.
Therefore, light travels approximately 6.08×10^12 miles in a year.
To find out how many miles light travels in a year, we can multiply the speed of light (1.9×10^5 mi./sec.) by the number of seconds in a year (3.2×10^7 sec.).
To multiply numbers in scientific notation, we multiply the coefficients (1.9 × 3.2) and add the exponents of the powers of 10 (5 + 7).
1.9 × 3.2 = 6.08 (rounded to two decimal places)
10^5 × 10^7 = 10^(5+7) = 10^12
Combining these results, we have 6.08 × 10^12.
Therefore, light travels approximately 6.08 × 10^12 miles in a year.