Light travels at an approximate rate of 1.9 x 10^5 mi./sec. There are about 3.2 x 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 find the distance light travels in a year, we can multiply its speed by the number of seconds in a year:
Speed of light = 1.9 x 10^5 mi./sec
Number of seconds in a year = 3.2 x 10^7 sec
Distance light travels in a year = (1.9 x 10^5 mi./sec) * (3.2 x 10^7 sec)
Simplifying, we can multiply the coefficients and add the exponents:
Distance light travels in a year = 6.08 x 10^12 mi.
Therefore, light travels approximately 6.08 x 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 x 10^5 mi./sec) by the number of seconds in a year (3.2 x 10^7 seconds).
(1.9 x 10^5 mi./sec) * (3.2 x 10^7 seconds)
To multiply these values, we can multiply the numbers and add the exponents:
1.9 * 3.2 = 6.08
10^5 * 10^7 = 10^(5+7) = 10^12
So, the answer is 6.08 x 10^12 miles in a year.
To calculate how many miles light travels in a year, we can multiply the speed of light (1.9 x 10^5 mi./sec) by the number of seconds in a year (3.2 x 10^7 seconds).
First, let's multiply the numerical parts:
1.9 x 3.2 = 6.08.
Next, let's multiply the powers of 10:
10^5 x 10^7 = 10^(5+7) = 10^12.
Now, putting the two parts together, we get:
6.08 x 10^12 miles.
This is the answer in decimal form. If we want to express it to the exact decimal place, we need to determine how many digits are significant in the original values.
Since both 1.9 and 3.2 are known to have two significant figures, the result should also be limited to two significant figures.
Therefore, the answer, expressed to the exact decimal place, is approximately 6.1 x 10^12 miles.