Final answer:
To find the inner diameter of a tube using mass and density, use the equation for density and the formula for volume of a circular tube.
Step-by-step explanation:
To find the inner diameter of a tube using mass and density, we can use the equation for density: density = mass/volume.
For a circular tube, the volume can be calculated using the formula: volume = π * (radius)^2 * height, where radius is the inner radius of the tube and height is the length of the tube.
By rearranging the density equation, we get: radius = sqrt(mass / (π * density * height)).
Substituting the given values for mass and height, and assuming the density of the substance in the tube is known, we can calculate the inner radius of the tube.