Question

A person breathes 2.5 x 10^-4 in about cubic meters of air per second. How long does it take to breathe in 2.5 cubic meters of air?

Answer 1

10⁴ seconds

Explanation:

Given that,

A person breathes
`2.5* 10^(-4)` in about cubic meters of air per second.

We need to find time taken to breathe 2.5 cubic meters of air.

In 1 sec =
`2.5* 10^(-4)` m³ of air breathe

Let in x seconds, 2.5 m³ of air taken by the person.

`x=(2.5)/(2.5* 10^(-4))\\\\x=10^4\ s`

Hence, in 10⁴ seconds 2.5 m³ of air is taken by the person.