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Keith_Richards [23]
2 years ago
8

Which phrase describes an irregular galaxy?

Physics
1 answer:
viktelen [127]2 years ago
7 0

Answer:b

Explanation:

Just did the test

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A bus contains a 1440 kg flywheel (a disk that has a 0.63 m radius) and has a total mass of 10200 kg. Calculate the angular velo
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Answer:\omega =93.51 rad/s

Explanation:

Given

mass of Flywheel m_1=1440 kg

mass of bus m_b=10200 kg

radius of Flywheel r=0.63 m

final speed of bus v=21 m/s

Conserving Energy i.e.

0.9(Rotational Energy of Flywheel)= change in Kinetic Energy of bus

Let \omegabe the angular velocity of Flywheel

0.9\cdot \frac{I\omega ^2}{2}=\frac{m_bv^2}{2}

I=moment\ of\ Inertia =mr^2=1440\cdot 0.63^2=571.536 kg-m^2

0.9\cdot \frac{571.536\cdot \omega ^2}{2}=\frac{10200\cdot 21^2}{2}

\omega ^2=21^2\times \frac{10200}{0.9\times 571.536}

\omega =21\times 4.45=93.51 rad/s

8 0
3 years ago
Which of the following sentences shows the correct use of a transition word? Even though I was sick, I went to the doctor. My sh
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Answer:

D. I stayed up late for several nights. Eventually, I was too tired to concentrate.

Explanation:

i got it right edge 2020.

3 0
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Explanation:

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