atmospheric pressure as measured by a mercury barometer is 99.0 kPa, a patient is fed by intraveneous feeding. A needle is inserted in a vein in the patient's arm and a tube leads from the needle to a reservoir of fluid (density: 1050 kg/m3). The top of the fluid is located at height h above the arm. The top of the reservoir is open to the air. The gauge pressure inside the vein is 5026 Pa. ?mercury = 13600 kg/m3.

a) How high is the mercury in the barometer?

b) What is the gauge pressure at the top of the fluid?

c) What is the absolute pressure inside the vein?

d) What is the minimum value of h that allows fluid to enter the vein?