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3 years ago

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Calculate the centripetal force on a 4.5 kg sensor that is attached at the end of a 90.0-m long wind turbine blade that is rotat

ing at 1.00 rev/s.

1 answer:

ad-work [718]3 years ago

6 0

15972.55N

Explanation:

Given parameters:

Mass of sensor = 4.5kg

length of the turbine blade = 90m

angular velocity = 1 rev/s

Unknown:

Centripetal force = ?

Solution;

Centripetal force is the force that acts on a body moving in a radial form directed towards the center.

It is mathematically expressed as:

F = $\frac{mv^{2} }{r}$

m is the mass

r is the radius of path

v is the velocity

v = wr

w is the angular velocity

v = 1 x 2πrad x 90 = 565.2m/s

F = $\frac{4.5 x 565.2^{2} }{90}$ =15972.55N

learn more:

Force brainly.com/question/8590524

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Explanation:

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The movement or spinning of this subatomic particle is what creates magnetism.

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Answer:

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Explanation:

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4 years ago

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3 years ago

The Achilles tendon connects the muscles in your calf to the back of your foot. When you are sprinting, your Achilles tendon alt

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Answer:

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(a)

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Young's modulus is given by

$E=\frac {Fl}{A\triangle l}$ and $\triangle l=\frac {Fl}{EA}$ and substituting F with 8mg we obtain $\triangle l=\frac {8mgl}{EA}$

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(b)

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The fraction of tendon, f is given by

$f=\frac {\triangle l}{l}$ . Substituting $\triangle l$ with 0.005m and l with 0.15m we obtain

$\epsilon=f=\frac {0.005}{0.15}=\frac {1}{30}=0.033$

Therefore, fraction of the tendon’s length is 0.033

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