3 years ago

It is known as a basic unit of all living things.

Physics

1 answer:

andrezito [222]3 years ago

4 0

hello, the answer is..

cell

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How fast (in rpm) must a centrifuge rotate if a particle 6.00 cm from the axis of rotation is to experience an acceleration of 1

astra-53 [7]

The acceleration experienced by the particle is given by
$a=113000 g=113000 \cdot 9.81 m/s^2$
This corresponds to the centripetal acceleration of the motion, which is related to the angular speed $\omega$ of the particle and its distance r from the axis by the relationship
$a= \omega ^2 r$
In our problem, $r=6 cm=0.06 m$ , so we can solve for $\omega$ :
$\omega = \sqrt{ \frac{a}{r} } = \sqrt{ \frac{113000 \cdot 9.81 m/s^2}{0.06 m} }=4298 rad/s$
However, we must convert it into rpm (revolution per minute).
We know that 1 rad corresponds to $( \frac{1}{2 \pi} )$ revolutions, while $1 s = \frac{1}{60} min$ . So we the conversion is $\omega = 4298 rad/s \cdot ( \frac{1}{2\pi} rev/rad )( 60 s/min)=41067 rpm$

4 0

4 years ago

George walks to a friend's house. He walks 750 meters North, then realizes he walked too far. He turns around and walks 250 mete

Genrish500 [490]

Answer:

76.9 m/s

Explanation:

total distance travelled is 750m + 250m = 1000m

the total time taken is 13 seconds.

1000m/13s = 76.9 m/s (1dp)

8 0

3 years ago