Let us suppose you have two blocks and you do not know what material they are made of. The volume of one block is 30 `cm^(3)` while the other is 60 `cm^(3).` The second block is heavier than the first. Based on this information, can you tell which of the two blocks is denser?

What should be the minimum area of an ice block of thickness 30 cm so that it can float on water with a man of mass 90 kg on it? The density of ice = 0.9g*cm^(-3) .

Two bodies of identical size but made of different materials remain immersed completely in water. One of them remains suspended with the help of a thread and the tension acting on that thread is 500gxxg . The other is anchored to the bottom of the vessel by a thread so that it cannot float up and the tension acting on this thread is 12.5gxxg . If the volume of each body is 50cm^(3) , then determine the mass and density of each body.

You are supplied with 500 mL each of 2(N) HCl and 5(N) HCl. What is the maximum volume of 3(M) HCl that you can prepare using only these two solutions-