Answer:
Step-by-step explanation:
To find the density of the material of a sphere, we can use the formula for density:
Density (ρ) = Mass (m) / Volume (V)
We are given the mass of the sphere (m = 28 kg), but we need to calculate its volume using the sphere's radius (r = 0.3 m).
The formula for the volume of a sphere is:
Volume (V) = (4/3) * π * r^3
Let's plug in the values and calculate the density:
Volume (V) = (4/3) * π * (0.3)^3
V ≈ 0.03351 m³
Now, we can calculate the density (ρ):
ρ = m / V
ρ = 28 kg / 0.03351 m³
ρ ≈ 836.94 kg/m³
So, the density of the material of the sphere is approximately 836.94 kg/m³.