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Human Blood contains plasma, platelets, and blood cells. To seperate the plasma from other components, centrifugation is needed. Effective centrifugation requires subjecting blood to an acceleration of 2000g or more. In this situation, assume that blood is contained in test tubes that are 15cm long and are full of blood. These tubes ride in the centrifuge tilted at an angle of 45 degrees above the horizontal:
A. Sketch a diagram of this situation
B. What is the distance of a sample of blood from the rotation axis of a centrifuge rotating at 3500 rpm, if it has an acceleration of 2000g?
C. If the blood at the center of the tubes revolves around the rotation axis at the radius calculated in part(b), calculate the accelerations experienced by the blood at each end of the test tube. Express all accelerations as multiples of g.
A 42.5 mA current is carried by a uniformly wound air-core solenoid with 425 turns, a 19.5 mm diameter, and 13.0 cm length. Compute the inductance of the solenoid
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Calculate the binding energy of the last neutron in the 4320Ca nucleus. (Hint: You should compare the mass of 4320Ca with the mass of 4220Ca plus the mass of the last neutron. The mass of 4220Ca = 41.958622 u, whereas the mass of 4320Ca = 42.95877..
A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -40?C. By how much does her mass increase
Two tugboats pull a disabled supertanker. Each tug exerts aconstant force of 1.7×106 N, one at an angle 18.0^\circ west of north, What is the total work done by the twotugboats on the supertanker
An engine works at 23.0% efficiency. The engine raises a 5.00-kg crate from rest to a vertical height of 8.0 m, How much heat input is required for this engine
An automobile accelerates from zero to 28.0 m/s in 7.0 s. The wheels have a diameter of 0.8 m. What is the average angular acceleration of each wheel
A car is traveling at 27 m/s when the driver spots a large pothole in the road a distance 44 m ahead. She immediately applies her brakes. If her acceleration is -9.7 m/s2, does she arrange to stop before reaching the pothole.
the ground state of ne-17 is unstable. its half-life has been measured to be 109 ms. a what is the energy width of the
A 25- sample of an ideal gas with is at 250 and 50. The gas is compressed isothermally to one-third of its original volume, then heated at constant volume until its state lies on the adiabatic curve that passes through its original state, and then al..
A farsighted man uses eyeglasses with a refractive power of 1.90 diopters. Wearing the glasses 0.03 m from his eyes, What is the correct contact lens prescription, in diopters
on a spacecraft two engines fire for a time of 479 s. one gives the craft an acceleration in the x direction of ax
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