In medicine, it is often important to monitor the blood flow in certain areas of the body. However, the movement of blood is difficult to monitor directly. Instead, some medical devices use the Hall effect, taking advantage of the fact that the blood flowing through a vein contains a considerable number of free ions. B - + Model the vein in a patient's arm to be of rectangular cross section, as shown in the figure, with a width w = 4.00 mm and height h = 3.65 mm. The entire section of the vein is immersed in a constant magnetic field of B = 0.0955 T, pointing horizontally and parallel to the width. A medical device constantly monitors the resulting Hall voltage. Suppose that medical precautions mandate that the speed of the blood flow for this particular component of the body should never drop below 15.80 cm/s. At what minimum Hall voltage VH, in millivolts, should the medical device be designed to trigger an alarm to the medical staf?

In medicine, it is often important to monitor the blood flow in certain areas of the body. However, the movement of blood is difficult to monitor directly. Instead, some medical devices use the Hall effect, taking advantage of the fact that the blood flowing through a vein contains a considerable number of free ions. B - + Model the vein in a patient's arm to be of rectangular cross section, as shown in the figure, with a width w = 4.00 mm and height h = 3.65 mm. The entire section of the vein is immersed in a constant magnetic field of B = 0.0955 T, pointing horizontally and parallel to the width. A medical device constantly monitors the resulting Hall voltage. Suppose that medical precautions mandate that the speed of the blood flow for this particular component of the body should never drop below 15.80 cm/s. At what minimum Hall voltage VH, in millivolts, should the medical device be designed to trigger an alarm to the medical staf?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

d) Answer the question shown in the image
Your employer is planning to build several cylindrical storage tanks that will hold fuel. He has decided that all of the cylindrical storage tanks should be the same size, but due to space constraints, is unsure what the diameter and height of each tank should be. Also, he currently does not know exactly how much fuel he will need to store. You are tasked with creating a "flexible" spreadsheet for your employer that will calculate the total volume of several cylindrical storage tanks. The following requirements should be met: • The input section should include inputs for: tank diameter (feet), tank height (feet), number of tanks built and total amount of fuel to be stored (gallons). Enter the following values in the input section of your spreadsheet: O Tank Diameter (feet) = 28 o Tank Height (feet) = 20 o Number of Tanks Built (ea) = 3 O Total Amount of Fuel to be Stored (gal) = 275,000 • The calculation section should compute: o Volume of One Tank (cubic feet AND gallons) o Total…
A hanging magnesium wire with diameter 0.15 cm is initially 2.1 m long. When a 45 kg mass is hung from it, the wire stretches an amount 1.31 cm. A mole of magnesium has a mass of 24 grams, and its density is 1.74 g/cm³. Part 1 (a) What is the length of an interatomic bond in magnesium (diameter of one atom)? d = i m
Fluids Q5
▼ What is the pressure at a depth of 5000 m in the ocean? Express your answer to four significant figures using the appropriate ur ▸ View Available Hint(s) P= 5.057x107 Pa Submit Previous Answers ✔Correct Part B What is the fractional volume change AV/V of seawater at this pressure? As ▸ View Available Hint(s) ΔV/V = -0.023 Submit Previous Answers Correct Part C What is the density of seawater at this pressure?
Hello. I'm struggling to find an expression (formula) for calculating the density of the hollow tube. Please help me out.
A3.0 mL syringe has an inner diameter of 4.0 mm, a needle inner diameter of 0.29 mm, and a plunger pad diameter (where you place your finger) of 1.2 cm. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100. Assume the liquid is an ideal fluid. Part A What is the minimum force the nurse needs to apply to the syringe? Express your answer in newtons. |VG ΑΣΦ F = Submit Part B X Incorrect; Try Again; 5 attempts remaining Previous Answers Request Answer V= Submit The nurse empties the syringe in 3.8 s. What is the flow speed of the medicine through the needle? Express your answer in meters per second. [5] ΑΣΦ ? 3 Previous Answers Request Answer ? N X Incorrect; Try Again; 5 attempts remaining m/s
Indiana Jones has acquired an artifact called the Amulet of Set, a piece of platinum jewelry in the shape of a snake. However, he suspects that he has a fake amulet, a replica planted by one of his enemies. He does not want to risk destroying the amulet in a chemical analysis, so he tries a more ancient method of identification. He first determines the mass of the amulet as it just hangs from a scale to be 1.28 kg. When he completely immerses the amulet in pure water, the reading on the scale drops to 1.12 kg. Draw a diagram showing the forces acting on the amulet as it is immersed. What is the buoyant force felt by the amulet? What is the volume of the amulet? Do not assume it is actually made of platinum! Is the amulet authentic? Justify your answer. *Problems involving the buoyant force are Newton’s Second Law problems, and should be solved with the same process!*
Please answer parts d and e
Nilo
Water flows through a 2.9-cm-diameter hose 2.7 m/s. Part A How long, in minutes, will it take to fill a 600 L child's wading pool? Express your answer in minutes. t = ΑΣΦ ? min
A sphygmomanometer is a device used to measure blood pressure, typically consisting of an inflatable cuff and a manometer used to measure air pressure in the cuff. In a mercury sphygmomanometer, blood pressure is related to the difference in helghts between two columns of mercury. The mercury sphygmomanometer shown in the figure below contains air at the cuff pressure P. Po The difference in mercury heights between the left tube and the right tube is h= 109 mmtg - 0.109 m, a normal systolic reading. What is the gauge systolic blood pressure Poauge in pascals? The density of mercury is p 13.6 x 10 kg/m and the ambient pressure is Po1.01 x 10 Pa. HINT Pa