8) You have a block of a mystery material, 12 cm long, 11 cm wide and 3.5 cm thick. Its mass
is 1155 grams.
a) What is its density.
b) Will it float in a tank of water, or sink?
c) If it floats, what percentage of the object will be sticking out above the water? If it sinks,
what will be the normal force it presses against the bottom of the tank.
d) Repeat parts b and c, only instead of water, the tank is full of mercury