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)
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.
1.9×10^5 mi./sec * 3.2×10^7 sec/year = 6.08×10^12 mi/year
Therefore, light travels approximately 6.08×10^12 miles in a year.
To find the distance light travels in a year, we can multiply the speed of light by the number of seconds in a year.
The speed of light is given as approximately 1.9x10^5 mi/sec.
The number of seconds in a year is approximately 3.2x10^7 sec.
Multiplying these values, we get:
1.9x10^5 mi/sec * 3.2x10^7 sec/year = 6.08x10^12 mi/year.
Therefore, light travels approximately 6.08x10^12 miles in a year.
To calculate the number of miles light travels in a year, we need to multiply the speed of light (1.9×10^5 mi./sec) by the number of seconds in a year (3.2×10^7 sec).
First, let's perform the multiplication:
(1.9×10^5 mi./sec) * (3.2×10^7 sec)
To multiply numbers in scientific notation, we multiply the coefficients (1.9 * 3.2) and add the exponents (5 + 7):
6.08 × 10^(5+7) mi.
Next, we need to simplify the exponent:
5 + 7 = 12
The final answer is 6.08 × 10^12 mi.
So, light travels approximately 6.08 × 10^12 miles in a year.