
this numbers makes as pressure reduces with increase in height
or we can say that at feet pressure is equal to Patm + (
)
here is density of mercury , g = acceleration due to gravity , h = height of person
so pressure is higher at feet than at head
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the pressure above atmospheric pressure of blood in a person’s head and in their feet
Calculate the difference in blood pressure between the feet and top of the head for a person who is 1.80 m tall. Consider a cylindrical segment of a blood vessel 2.00 cm long and 1.60 mm in diameter. What additional outward force would such a vessel need to withstand in the person's feet compared to a similar vessel in her head?
At 30,000 feet above sea level, atmospheric pressure is only 224 torr. That’s why airplane cabins are pressurized. There isn’t enough air for you to breathe outside the plane! If we took a balloon filled to 3.86L at room temperature (21°C) and 0.947 atm, what would its volume be at 30,000 feet above sea level (outside the airplane!) if the temperature also reduced to -35.°C?
A pump is located 20 feet below a supply reservoir. The head loss in the pipe from the reservoir to pump is 2.6 ft of water. Assuming atmospheric pressure to be 14.7 psia and vapor pressure of water to be 0.256 psia, the Net Positive Suction Head Available (NPSHA) is:
An atmospheric pressure of 105 N/m2 corresponds to a 753 mm mercury column. Suppose a certain person has a heartbeat of 80 per minute and that each beat displaces 50 cm3 of blood at an average pressure difference of 120 mm Hg. Find the average power output of this person’s heart.
102. **Atmospheric pressure is related to height above sea level according to an exponential model. Suppose the pressure at 18,000 feet is half that at sea level. Find the value of k in the continuous model and explain what the value of k tells you. Find the equation and use it to estimate the pressure at 1000 feet, as a percentage of the pressure at sea level. (A) (B) (C) (D) (E) Less than 20% Between 20% and 40% Between...
!. An on-farm diesel fuel tank is on a stand 4 feet above the ground. The tank is vented to the atmosphere (the air in the tank is at atmospheric pressure). If the diesel level in the tank is 4 feet above the release point. If the density of diesel is 6.98 pounds/gallon, what is the gauge pressure of the fuel at the nozzle? What is the absolute pressure? Gauge Pressure = ________ psi Absolute Pressure = __________ psi 2....
Part Description Which is true? 1. Absolute pressure-atmospheric pressure - gage pressure A. 2. Absolute pressure-atmospheric pressure + gage pressure If we assume Standard Temperature and Pressure (called "STP") the surface of the Tennessee River is at a gage pressure of 0 psi. What is the gage pressure 10 feet below the B. surface of the Tennessee River? 1. (62.4 lb/ft(10 ft) 2. (62.4 lb/ft3)(32.2 ft/s2)(10 ft)
For this task, you will be writing a Python script that will determine a person’s blood pressure category. The program should prompt the user for the systolic and diastolic blood pressure readings. Based on the readings and using the table below, the program will determine and output the category. Category Systolic Diastolic Hypotension 50-89 35-59 Normal 90-119 60-79 Pre-hypertension 120-139 80-89 Mild Hypertension 140-159 90-99 Moderate Hypertension 160-179 100-109 Severe Hypertension 180-209 110-119 Very Severe Hypertension 210-239 120-135 Other...
C. Blood Pressur 1. The density of blood is 1055 kg/m3. If the blood at the very top of your head exerts a minimum gauge pressure of 45 mm Hg (6000 Pa), estimate the gauge pressure at your heart (0.25 m below the top of your head) in Pa. (Recall: gauge pressure is thepressure above atmospheric pressure) 2. are usually measured in mm Hg. Convert your answer In the US, blood pressures in question C1 to units of mm Hg....
Your Instant Pot pressure cooker operates at 11.6 psi above atmospheric pressure. Considering the boiling point of water (100 0C at 14.7 psi, which is normal atmospheric pressure) and the heat of vaporization of water (40.7 kJ/mol), at what temperature is the water inside the instant pot boiling when it reaches its operational pressure?