Laboratory Instruments

To analyze a blood sample, a research lab needs to produce a radial force of 450 N on the platelets in a blood sample. To do this they plan to use a centrifuge that has a radius 0.325 m for the test tube holder containing the blood. If an individual platelet has a mass of [...]

Tags: Difficult, Physics, Problem, Word.

A sample of blood is put into a centrifuge of radius 15.0 cm. The mass of a red corpuscle is 3.0 x 〖10〗^(-16) kg, make it settle out of the plasma is 4.0 x 〖10〗^(-11) N. At how many revolutions per second should the centrifuge be operated? (Show the computations)

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To withstand “g-forces” of up to 10 g’s, caused by suddenly pulling out of a steep dive, fighter jet pilots train on a “human centrifuge.” 10 g’s is an acceleration of 98m/s2. If the length of the centrifuge arm is 10m , at what speed is the rider moving when she experiences 10 g’s?

Tags: Help, Physics, Problem

A centrifuge in a medical laboratory rotates at an angular speed of 3600 rev/min. When switched off, it rotates through 50.0 revolutions before coming to a rest. Find the constant angular acceleration of the centrifuge.

Tags: Physics, Problem, Rotation

Engineers are trying to create artificial “gravity” in a ring-shaped space station by spinning it like a centrifuge. The ring is 109 m in radius. How quickly must the space station turn in order to give the astronauts inside it apparent weights equal to their real weights at the earth’s surface? Consider g = 9.81 [...]

Tags: Gravity, Physics, Problem, Time

A laboratory centrifuge 0.20 m in diameter rotates at a rate of 6,000 rpm (revolution per minute) which means the time per revolution is 0.01 s. What is the speed (in m/s) of a point on the outer rim of the centrifuge? Thanks!

Tags: Physics, Problem, Speed/acceleration

To withstand “g-forces” of up to 10g’s, caused by suddenly pulling out of a steep dive, fighter jet pilots train on a “human centrifuge.” 10g’s is an acceleration of 98m/s^2. If the length of the centrifuge arm is 12m, at what speed is the rider moving when she experiences 10g’s?

Tags: Circular, Help, Motion, Physics, Please, Problem

what angular velocity is needed for a centrifuge to produce an acceleration of 1000g (the earth gravity) at a radius arm of 15cm?

Tags: Angular, Another, Any1, Physics, Problem, Velocity

An astronaut is training in an earthbound centrifuge that consists of a small chamber whirled around horizontally at the end of a 5.1 -long shaft. The astronaut places a notebook on the vertical wall of the chamber and it stays in place. The static friction coefficient is .52 what is minimum rate that the centrifuge [...]

Tags: Physics, Problem

If the length of the centrifuge arm is 10.0m , at what speed is the rider moving when she experiences 10 g’s? 10 g’s is an acceleration of 98 m/s?

Tags: Angular, Problem, Speed