Question

7. Change the following data into scientific notation:
a. The distance between Pluto and the Sun is 5,913,000 km.
b. The density of nitrogen gas is 0.0012506 g/cm3.

Answer 1

Explanation:

A number can be written in the form of scientific notation as follows :

$N=x\times 10^y$

x is any real number and y is integer

(a) The distance between Pluto and the Sun is 5,913,000 km.

There are 6 digits after 5. In scientific form is given by :

$N=5.91\times 10^6\ km$

(b) The density of nitrogen gas is 0.0012506 g/cm³.

There are 2 digits before 1. In scientific notation,

$d=1.25\times 10^{-3}\ g/cm^3$