Ask Question
9 January, 06:16

In 1896, S. Riva-Rocci developed the prototype of the current sphygmomanometer, a device used to measure blood pressure. When it was worn as a cuff around the upper arm and inflated, the air pressure within the cuff was connected to a mercury manometer. The density of mercury is 13,550 kg/m3. Assume all pressures are gage pressures Part A The reading for the high (or systolic) pressure is 120 mm. Determine this pressure in pascals and psi. Express your answers using three significant figures separated by a comma. pPa, ppsi = nothing Pa, psi Request Answer Part B The reading for the low (or diastolic) pressure is 80 mm. Determine this pressure in pascals and psi. Express your answers using three significant figures separated by a comma. pPa, ppsi = nothing Pa, psi

+3
Answers (1)
  1. 9 January, 09:23
    0
    A pressure that causes the Hg column to rise 1 millimeter is called a torr. The term 1 mmHg used can replaced by the torr.

    1 atm = 760 torr = 14.7 psi.

    A.

    120 mmHg

    Psi:

    760 mmHg = 14.7 psi

    120 mmHg = 14.7/760 * 120

    = 2.32 psi

    Pa:

    1mmHg = 133.322 Pa

    120 mmHg = 120 * 133.322

    = 15998.4 Pa

    B.

    80 mmHg

    Psi:

    760 mmHg = 14.7 psi

    80 mmHg = 14.7/760 * 80

    = 1.55 psi

    Pa:

    1mmHg = 133.322 Pa

    80 mmHg = 80 * 133.322

    = 10665.6 Pa
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “In 1896, S. Riva-Rocci developed the prototype of the current sphygmomanometer, a device used to measure blood pressure. When it was worn ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers