The radius of the aorta is «10 mm and the blood flowing through it has a speed of about 300 mm/s. a capillary has a radius of about 4ˆ10´3 mm but there are literally billions of them. the average speed of blood through the capillaries is about 5ˆ10´4 m/s. (i) calculate the effective cross sectional area of the capillaries and (ii) the approximate number of capillaries.
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Physics, 21.06.2019 16:40
Aforce of 34.5 newtons is applied to an object at an angle of 45 º with the horizontal. what is the force acting on the object in the horizontal direction?
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Physics, 21.06.2019 17:10
Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) determine the magnitude and direction of projectile velocity at t= 1.3s b) determine the magnitude and direction of projectile acceleration at t=1.3s
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Physics, 22.06.2019 02:50
20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.
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Physics, 22.06.2019 04:20
Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?
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The radius of the aorta is «10 mm and the blood flowing through it has a speed of about 300 mm/s. a...
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