Chapter F, Problem A.24E

(a)

Interpretation Introduction

Interpretation:

Density of carbon nucleus has to be calculated.

Concept Introduction:

Density is a physical property and specific for each substance under fixed conditions.  It is defined as the ratio of mass of a substance to the volume of the substance.  They are usually expressed as grams per cubic centimeter (${\text{g/cm}}^{\text{3}}$) for solids and grams per milliliter ($\text{g/mL}$) for liquids.

  $\text{Density}\text{=}\frac{\text{mass}}{\text{volume}}$

From the above formula volume can be calculated if the mass and density is known by rearranging the formula as shown below;

    $\text{Volume}\text{=}\frac{\text{mass}}{\text{density}}$

(b)

Interpretation Introduction

Interpretation:

Radius of earth has to be if the density of earth is $1.415\times {10}^{-21}\text{g}\cdot {\text{cm}}^{\text{-3}}$.

Concept Introduction:

Refer part (a).