in scientific notation, the value of the speed of light in a vacuum
will be written as 2.995 * 10^8. when this value is represented in the form of
a * 10^b, then, a = 2.995 and b = 8.
the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.