QUESTION 3
(a) Define the Bernoulli's principle. [2 marks]
(b) Figure Q3(b) shows a block 1 with mass, m, is submerged in water at level 1, 3.0 m from the surface. If an identical block 2 is brought down to level 2 of 6.0 m from the surface, state your argument on how the absolute pressure on the block alters. [5 marks]
Figure Q3(b): Two blocks submerged in the water
(c) A house has a cylindrical shape of water tank with a diameter of 2.0 m. It is filled with water and placed 40.0 m above a water valve of a house. Given the density of water is 1000 kg/m3. Determine,
(i) the water pressure between the valve and the water tank. [2 marks]
(ii) the average force on the valve. [2 marks]
(iii) the height of water shoots from a broken water valve of the house if the tank is 2.0 m deep. [2 marks]