Question

part ii-short answer. find the density of the following object: 6. a rock has a mass of 60 grams. a graduated cylinder has an initial volume of 30 ml. a rock is dropped below. find the volume of the rock and calculate the density of the rock. _______ (include correct units)

Explanation:

Step1: Find the final volume from the diagram (assuming final volume is 50 mL)

Final volume \( V_f = 50 \, \text{mL} \), Initial volume \( V_i = 30 \, \text{mL} \)
Volume of rock \( V = V_f - V_i = 50 - 30 = 20 \, \text{mL} \) (since \( 1 \, \text{mL} = 1 \, \text{cm}^3 \), \( V = 20 \, \text{cm}^3 \))

Step2: Use density formula \(

ho = \frac{m}{V} \)
Mass \( m = 60 \, \text{g} \), Volume \( V = 20 \, \text{cm}^3 \)
\(
ho = \frac{60}{20} = 3 \, \text{g/cm}^3 \)

Answer:

Volume of rock: \( 20 \, \text{mL} \) (or \( 20 \, \text{cm}^3 \)), Density: \( 3 \, \text{g/cm}^3 \)