What is the maximum heart rate for a 20-year-old subject/person? 220 - age Max HR
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A: Part A. 1 L/min=16.6667 cm3/s Therefore, 7.14 L/min=119 cm3/s
Q: The following is a practice question for an upcoming test: At a resting pulse rate of 77 beats per…
A: Given:- At a resting pulse rate of = 77 beats/ minute The human heart typically pumps about 73 mL of…
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Question 7
What is the maximum heart rate for a 20-year-old subject/person?
220 - age Max HR
150
200
220
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- The data shown below were obtained by time-lapse photography on a highway. Use regression analysis to fit these data to the Greenshields model and determine the following. Speed (mi/h) Density (veh/mi) 18.4 26.7 33.4 41.1 53.8 56.0 (a) the mean free speed (in mi/h) mi/h 80 65 50 36 15 10 (b) the jam density (in veh/mi) X The response you submitted has the wrong sign. veh/mi (c) the capacity (in veh/h) veh/h (d) the speed at maximum flow (in mi/h) mi/hJanice is grilling a steak for her July 4th barbecue dinner. The steak initially weighs 300 grams and is 25 mm thick. After grilling it for a while, she considers the steak done, and measures it again: it now weighs 215 grams, and is 15 mm thick. For both the cooked and uncooked steak, she uses the thumb-test to determine the done-ness, i.e. she uses her thumb (area ~5cm2) to push down with a force of 5 N. The uncooked steak compresses by 7 mm, and the cooked steak by 2 mm. The change in elasticity of the steak on cooking is due partly to the loss of water volume (so that existing bonds get closer together) and partly to the creation of new bonds. Assume all of the difference in raw vs. cooked steak thickness is due to water loss that makes it thinner (25 mm thick in the uncooked steak, versus 15 mm thick in the cooked steak), and that the other dimensions of the steak (length and width) have not changed. By what percentage has the steak's volume decreased from the original value?…Although human lung capacity is about 3 liters per lung, the tidal volume, representing the amount of air that is breathed in and out with each breath is much -3 less, typically about 250 cm7 per lung. The cycle of inhalation and exhalation during normal activity can be represented as a sine curve, as shown in the figure below, where the amount of air in each lung before inhalation begins is about 1.09 liters (the functional residual capacity of the lung) and the time on the horizontal axis has been calculated with the average adult breathing rate of 16 breaths per minute. Volume of air in lungs (L) 1.34 1.09 mm minimum height maximum height 15 We can model each lung as a cylinder of radius 5.95 cm in which one end cap is free to move up and down, increasing and decreasing the volume of the model lung during the breathing process. (a) Using the data above, calculate the minimum and maximum heights (in cm) of the model lung during the breathing process. (Round your answers to at least…
- The heart of a resting adult pumps blood at a rate of 6.94 L/min. (a) Convert this to cm3/s. (b) What is this rate in m3/s?Janice is grilling a steak for her July 4th barbecue dinner. The steak initially weighs 300 grams and is 25 mm thick. After grilling it for a while, she considers the steak done, and measures it again: it now weighs 215 grams, and is 15 mm thick. For both the cooked and uncooked steak, she uses the thumb-test to determine the done-ness, i.e. she uses her thumb (area ~5cm2) to push down with a force of 5 N. The uncooked steak compresses by 7 mm, and the cooked steak by 2 mm. Calculating elasticity What is the elasticity of the raw steak? Express your answer in Pascals but without including the units in your answer. What is the elasticity of the cooked steak? Express your answer in Pascals, but without including the units.The left ventricle stroke rate is 94 mL and the heart rate is 70 BPM, calculate the blood flow in L min-1 to 1 decimal place.
- Determine the erythrocyte sedimentation rate assuming that the erythrocytes have a spherical shape with a diameter of 8 microns. Take the blood density 1060 kg/m3, the density of the substance of erythrocytes 1090 kg/m3.If you are infusing a 1 L Iv bag of a normal saline at a rate of 100 ml per hour, how long will it take for the entire IV bag to infuse into the patient ?