Trevor, Neville Longbottom’s pet toad, has a mass of 13.6 kg. Trevor jumps into a large cylinder containing water. The water level rises 2.50 L. What is the density of the toad? Express your answer in kg/L.

5.44 kg/L

Explanation:

Mass = 13.6 kg

Change in water level as a result of Trevor = Volume of Trevor = 2.50 L

Density = ?

The relationship between the three parameters is given as;

Density = Mass  /  Volume

Density = 13.6 / 2.5

Density = 5.44 kg/L

there is none because earth is stationary and flat.