COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Question
Chapter 1, Problem 52QAP
To determine
(a)
How much blood is in the body in L and m3
To determine
(b)
What mass of blood heart pump per beat in g and kg
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Students have asked these similar questions
Given the average heart rate of a human is 7.00 beats per minute and the average volume flow of blood pumped out by the heart to the body is 70.0ml/beat.
A, Determine the average flow rate for blood in units of milliliters per minute.(mL/min)
The following is a practice question for an upcoming test: At a resting pulse rate of 77 beats per minute, the human heart typically pumps about 73 mL of blood per beat. Blood has a density of 1060 kg/m3. Circulating all of the blood in the body through the heart takes about 1 min for a person at rest.
On average, what mass of blood does the heart pump with each heart beat in kg?
mass per heart beat:
The basic function of an automobile's carburetor is to atomize the gasoline and mix it
with air to promote rapid combustion. Assume that 40 cm? of gasoline is atomized
into N spherical droplets. Each droplet has a radius of 2.0 x 10-5 m. Find the total
surface area of these N spherical droplets.
Chapter 1 Solutions
COLLEGE PHYSICS
Ch. 1 - Prob. 1QAPCh. 1 - Prob. 2QAPCh. 1 - Prob. 3QAPCh. 1 - Prob. 4QAPCh. 1 - Prob. 5QAPCh. 1 - Prob. 6QAPCh. 1 - Prob. 7QAPCh. 1 - Prob. 8QAPCh. 1 - Prob. 9QAPCh. 1 - Prob. 10QAP
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- One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in room temperature. Using those numbers, answer the following questions: a) What is the mass of a single gold atom in kg? b) Assume that gold atoms sit in a perfect cubic crystal structure. Estimate the distance between two gold atoms in meters. c) If we have a gold cube of 6 cm on each side, how many atoms can we fit along the edge of each side of the cube? d) What would be the mass, in kilograms, of the gold cube we discussed in part (c) (measuring 6 cm on each side)?arrow_forwardThe approximate diameter of the aorta is 0.50 cm; that of a capillary is 10 μm. The approximate average blood flow speed is 1.0 m/s in the aorta and 1.0 cm/s in the capillaries. If all the blood in the aorta eventually flows through the capillaries, estimate the number of capillaries in the circulatory system.arrow_forwardThe density of bubble gum is about 1g/cm3. You blow an 8g wad of gum into a bubble 9cm in diameter. What is the thickness of the bubble? Use the equation: 4πr2 to help solve the problem.arrow_forward
- A man jogging has a metabolic rate of 658 W. (a) Calculate his volume rate of oxygen consumption in L/s. ? L/s (b) Estimate his required respiratory rate in breaths/min if his lungs inhale 0.620 L of air in each breath and air is 20.9% oxygen. ?breaths/minarrow_forwardThe World Health Organization differentiates bone diseases using bone density measurements. The table given below is the criteria for diagnosing different bone diseases (assuming that the mean normal bone density is 1.8 g/cm and that 1SD is approximately 10% of the mean bone density). CATEGORY Osteoporosis Osteopenia (Low Bone Mass) 1.98 g/cm3 Normal Bone Density 1.98 Osteopetrosis What would be the diagnosis of a bone sample if its weight in air is 52 grams and its weight in water is 20 grams?arrow_forwardTwo cylindrical cross section water tanks are arranged so that the outflow from tank 1 falls into tank 2. The outflow from tank 2 flows to the drain. ģ is the volumetric flow rate out of a tank, and h is the height of the water in a tank. (a) State the fundamental physical law, and provide the general equation for a tank used to model the time history of the tank levels, h, and hz. Your equation should contain the following terms: A (eross sectional area of a water tank), p (density of water), and h (rate of change of the height of the water in a tank) (b) Both outflows have the characteristic volumetric flow rate being directly proportional to the head in the tank. ie. ġ1 = a, h, and q2 = azh2. Show that the differential equation governing the head in tank 2 has the form of : h, + ah, = be" Time, t, is the independent variable. Take the initial values of the heads to be A h(0) = H, and h,(0)= H,. Determine a, b and c. (Note: There is no d, or hi in the equation governing tank 2. You…arrow_forward
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