Answer:
The sphere's volume charge density is 2.58 μC/m³.
Step-by-step explanation:
Given that,
Radius of sphere R= 8.40 cm
Electric field

Distance r= 16.8 cm
We need to calculate the sphere's volume charge density
Using Gauss's law



Put the value into the formula



Hence, The sphere's volume charge density is 2.58 μC/m³.