You have a spring attached to the bottom of a container. The spring is aligned vertically. The container is filled with water (density 1.0 x 103 kg/m3). The spring constant of the spring is 370 N/m.

a) First, you place a brick in the water, on top of the spring. The brick is a standard UK brick (10.0 cm by 20.0 cm by 5.5 cm). It weighs 2.75 kg. What is the brick%u2019s density?

b) What is the buoyant force on the block?

c) How much does the block compress the spring?

d) Next, you tie a block of oak to the spring. This block is the same volume as the aluminum block. Its density is 0.56 x 103 kg/m3. How much does the spring stretch when the block is tied to the top of it?