Two ends of an U-tube manometer which contains mercury, is connected between two pipes (A & B), that carries of oil of specific gravities 0.9 & 1 respectively. The center of the pipe A (left limb) is 14 cm above the pipe B (right limb). The mercury level difference in the right limb is 4.2 cm and the height of fluid in the right limb is 5.05 cm. Find the pressure difference between these two pipes in Kilo Pascal (kPa). 2.5 marks (Enter only the values in the boxes by referring to the unit given in bracket. Do not send the handwritten answer sheets to my mail) The difference of pressure between the pipes A & B in (kPa) =
