Question

Convert 4.57 billion years (the age of the Solar System) to the appropriate SI unit. Be sure to report your answer with the correct number of significant figures. (Assume one year is 365 days.)

Answer 1

Answer:

The distance in the appropriate SI unit is equal to $4.324\times 10^{25}$ meters.

Explanation:

A light-year is equal to $9.461\times 10^{15}$ meters. The meter is the standard unit for the length in the SI system. Then, we convert 4.57 billion light years ($4.57\times 10^{9}\,l.y.$) by applying the following simple rule of three:

$x = 4.57\times 10^{9}\,l.y. \times \frac{9.461\times 10^{15}\,m}{1\,l.y.}$

$x = 4.324\times 10^{25}\,m$

The distance in the appropriate SI unit is equal to $4.324\times 10^{25}$ meters.