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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 capacitor is connected across the terminals of an ac generator that has a frequency of 448 Hz and supplies a voltage of 21 V. Find the capacitance of the second capacitor.
A 1.00-cm-high object is placed 4.70 cm to the left of a converging lens of focal length 7.60 cm. Find the position and height of the final image
Calculate the angular momentum of Jupiter due to its orbital motion about the Sun. In your calculation, use 7.780 1011 m as the average Jupiter-Sun distance and 3.740 108 s as the period of Jupiter in its orbit
An object with mass 3.0kg is attached to a spring with spring stiffness constant k=280N/m and is executing simple harmonic motion. Calculate the maximum velocity attained by the object
Under atmospheric pressure iron melts at 1530 ºC, and the latent heat of fusion is 1.49 × 104 J / mole. At the melting point, the density of the solid is phase is 7.80 g / cm3, and that of the liquid phase is 7.06 g / cm3. The atomic mass for iron..
An anchor holding a boat stationary on a river forms a 65 degree angle with the river bottom. The anchor line is 40 meters long. Assume the river has a uniform depth, how deep is the river directly below boat.
q1. at a factory a noon whistle is sounding with a frequency of 491 hz. as a car travelling at 78 kmh approaches the
Water is flowing in a pipe as depicted in the figure. As shown, p = 107 kPa, d = 4.61 cm, d' = 3.38 cm, v = 4.50 m/s, and h = 1.31 m. What pressure is indicated on the upper pressure gauge
An object weighing 347 N in air is immersed in water after being tied to a string connected to a balance. Calculate the density of the object
A tug of war is held between two teams of five men each. The mass of each man is 80 kg and he can initially pull on therope with a force of 1000 newtons. find the position of the teams as function of time
A 1.0 ball hangs from the ceiling of a truck by a 1.0--long string. The back of truck, where you are riding with the ball, has no windows and has been completely soundproofed. The truck travels along an exceedingly smooth test track, and you feel no ..
How several meters away is a cliff if an echo is heard 0.587 s after the original sound? Assume that sound traveled at 343 m/s on that day.
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