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Author Question: A sample of blood is placed into a centrifuge of radius 15.0 cm. The mass of a red corpuscle is 3.0 ... (Read 69 times)

Bernana

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on: Jul 28, 2018
A sample of blood is placed into a centrifuge of radius 15.0 cm. The mass of a red corpuscle is 3.0  10-16 kg, and the centripetal force required to make it settle out of the plasma is 4.0  10-11 N. At how many revolutions per second should the centrifuge be operated?

Question 2

A box is dropped onto a conveyor belt moving at 2 m/s. If the coefficient of friction between the box and the belt is 0.3, how long before the box moves without slipping?


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courtney_bruh

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Reply #1 on: Jul 28, 2018
Answer to Question 1

150 rev/s (9 000 rpm)

Answer to Question 2

0.7 s


Bernana

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Reply #2 on: Jul 28, 2018
Thank you!


courtney_bruh

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Reply #3 on: Jul 28, 2018
Always glad to help...


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