To solve for the new water level, let us first calculate for the volume of the copper cylinder. The formula we can use is:
V = m / ρ
where V is the volume, m is the mass of the copper and ρ is the density, therefore:
V = 48.85 g / (8.96 g / cm^3)
V = 5.45 cm^3
since cm^3 = mL
V = 5.45 mL
The new water level will be the initial volume of the graduated cylinder plus the volume of the copper cylinder, therefore:
new water level = 20 mL + 5.45 mL
new water level = 25.45 mL
