Chapter 1, Problem 1.20P

(a)

Interpretation Introduction

Interpretation:

The conversion factor to convert ${\text{in}}^2$ to ${\text{m}}^2$ is to be determined.

Concept introduction:

The conversion factor is the ratio or fraction that represents the relationship between the two units. Let us suppose the temperature in $°\text{C}$ is to be converted into $\text{K}$, then the factor

$298\text{K}$ is to be added in the temperature in $°\text{C}$ and this is called the conversion factor.

The unit with which the conversion is to be started should be written in the denominator so that it can cancel out the given unit. The desired unit to which the given unit is to be converted should be written in the numerator so that the required conversion can be done.

(b)

Interpretation Introduction

Interpretation:

The conversion factor to convert ${\text{km}}^2$ to ${\text{cm}}^2$ is to be determined.

Concept introduction:

The conversion factor is the ratio or fraction that represents the relationship between the two units. Let us suppose the temperature in $°\text{C}$ is to be converted into $\text{K}$, then the factor

$298\text{K}$ is to be added in the temperature in $°\text{C}$ and this is called the conversion factor.

The unit with which the conversion is to be started should be written in the denominator so that it can cancel out the given unit. The desired unit to which the given unit is to be converted should be written in the numerator so that the required conversion can be done.

(c)

Interpretation Introduction

Interpretation:

The conversion factor to convert $\text{mi/hr}$ to $\text{m/s}$ is to be determined.

Concept introduction:

The conversion factor is the ratio or fraction that represents the relationship between the two units. Let us suppose the temperature in $°\text{C}$ is to be converted into $\text{K}$, then the factor

$298\text{K}$ is to be added in the temperature in $°\text{C}$ and this is called the conversion factor.

The unit with which the conversion is to be started should be written in the denominator so that it can cancel out the given unit. The desired unit to which the given unit is to be converted should be written in the numerator so that the required conversion can be done.

(d)

Interpretation Introduction

Interpretation:

The conversion factor to convert ${\text{lb/ft}}^3$ to ${\text{g/cm}}^3$ is to be determined.

Concept introduction:

The conversion factor is the ratio or fraction that represents the relationship between the two units. Let us suppose the temperature in $°\text{C}$ is to be converted into $\text{K}$, then the factor

$298\text{K}$ is to be added in the temperature in $°\text{C}$ and this is called the conversion factor.

The unit with which the conversion is to be started should be written in the denominator so that it can cancel out the given unit. The desired unit to which the given unit is to be converted should be written in the numerator so that the required conversion can be done.