Question 2 A viscous fluid flows along a horizontal pipe of constant diameter passing a point labeled 1 first and then passing a point labeled 2. If the volume flow rate of the fluid remains constant, which graph below best describes the pressure as a function of position x along the pipe? A. B. Viscosity n p = 0 p = of X R 2 1 Q 2 P1 P2 C. L X p =0 X 1 2Smoking causes the body to increase its red blood cell production ( to maintain delivery of oxygen) which increases blood viscosity. Nicotine also causes the arteries to constrict. For a nonsmoker with blood viscosity of 7 = 2.5 x 10~3Pa-s normal blood flow requires a pressure difference of 8.0 mmHg across a certain artery. If this person were to smoke regularly, the viscosity would increase to 7 = 2.8 x 10~3Pa- s and the diameter would constrict by 10%. If the pressure difference across the artery does not change, which statement below is correct. The flow rate would decrease, primarily due to the change in viscosity. The flow rate would decrease, primarily due to the change in diameter. The flow rate would increase, primarily due to the change in diameter 90 BO >} The flow rate would increase, primarily due to the change in viscosity