To find the volume of the marbles, we can use the formula for the volume of a sphere:
V = (4/3)Ï€r^3
Where V is the volume and r is the radius of the sphere.
Plugging in the given radius of 2 mm, we get:
V = (4/3)(3.14)(2^3)
V = (4/3)(3.14)(8)
V ≈ 33.51 mm^3
Now, to find the total volume of all 50 marbles, we can multiply the volume of one marble by 50:
Total volume of marbles = 33.51 mm^3 * 50
Total volume of marbles ≈ 1675.5 mm^3
To find the unused space in the container, we subtract the volume of the marbles from the volume of the container:
Unused space = 4000 mm^3 - 1675.5 mm^3
Unused space ≈ 2324.5 mm^3
Rounding to the nearest tenth, the unused space is approximately 2324.5 mm^3.
So, the correct answer is:
2,325.3 mm^3