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Question 14 1 pts The blood pressure of an artery is measured at two heights: at the heart and 10 cm above the heart. The mass density of blood is about 1000 kg/m? Use g = 10 m/s2. Compared to the pressure at heart height, the pressure 10 cm above is: 1000 N/m2 higher 100 N/m2 higher 10 N/m2 higher 100 N/m2 lower O 1000 N/m2 lower Question 15 1 pts A section of a blood vessel has a constriction that reduces the inner diameter from 4 mm at the entrance to 2 mm at the exit. Ignore the effect of gravity and assume that viscosity is negligible. Compared to the pressure at the entrance the pressure at the exit is: O higher or lower depending on blood mass density O higher O higher or lower depending on the flow rate O lower