7. Your demonstrator will give you a simulated image of a vernier caliper. What is the reading in that case? [1 mark] C. Density determination In this part of the experiment, you will determine the density, p, of the material making up a piece of metal square tubing and a solid rod. The density can be calculated from: m P = V where m is the mass of the tube or rod and Vits volume. 1. Set up the formula for density p of the solid rod and the hollow tube using the indicated dimensions on the figures for the two objects. [2 marks] Density for solid rod: Density for hollow tube