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cupoosta [38]
3 years ago
14

What does a reference point provide

Physics
1 answer:
vfiekz [6]3 years ago
8 0
To check progress and direction
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A sample of blood is placed in a centrifuge of radius 16.0 cm. The mass of a red blood cell is 3.0 ✕ 10−16 kg, and the magnitude
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Answer:

f=145.29Hz

Explanation:

The centripetal force is given by:

F_c=ma_c(1)

Here m is the body's mass in which the force is acting and a_c is the centripetal acceleration:

a_c=\frac{v^2}{r}(2)

Here v is the speed of the body and r its radius. The speed is given by:

v=2\pi fr(3)

Replacing (3) in (2):

a_c=4\pi^2f^2r(4)

Replacing (4) in (1) and solving for f:

F_c=m4\pi^2 f^2r\\\\f=\sqrt{\frac{F_c}{4m\pi^2r}}\\f=\sqrt{\frac{4*10^{-11}N}{4(3*10^{-16}kg)\pi^2(16*10^{-2}m)}}\\f=145.29Hz

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