Chapter 1.3, Problem 1.6AFP

Interpretation Introduction

Interpretation:

The number of bottles of herbicides required by the landowner to spray on a field that has an area of $2050{\text{ m}}^2$ is to be calculated. Also, a road map for the solution is to be drawn.

Concept introduction:

Meter square $\left({\text{m}}^{\text{2}}\right)$ is the SI unit of the area. The English equivalent of the area is square foot $\left({\text{ft}}^2\right)$. The conversion factor to convert the area from ${\text{m}}^{\text{2}}$ to ${\text{ft}}^2$ is,

${\left(0.3048\right)}^2{\text{ m}}^2=1{\text{ ft}}^2$

A fluid ounce $\left(\text{Fl oz}\right)$ is the English equivalent unit of volume.

The conversion of one unit into another can be done using a proper conversion factor. Conversion factors are the ratios that relate the two different units of a quantity. It is also known as dimensional analysis or factor label method.

In the unit conversion problems, the given information is multiplied by the conversion factors to obtain the desired information. The unit conversion can be done as follows:

$\left(\cancel{\text{beginning unit}}\right)\left(\frac{\text{Final unit}}{\cancel{\text{beginning unit}}}\right)=\text{Final unit}$