Question

2. The average distance from the sun to the planet Mercury is about 58,000,000 km. The diameter of a human hair is about 0.0025 cm.
(a) What is the distance from the sun to Mercury written in scientific notation?
(b) What is the diameter of a human hair written in scientific notation?
(c) In comparing the measurements in Parts (a) and (b), what else must be done before a comparison is made?

Answer 1

A.) 5.8 X $10^{7}$

b.) 2.5 X $10^{-3}$

c.) you must first get the units of distance the same, so either convert km to cm or cm to km.

Hope this helps!