3 years ago

If a simple machine reduces the strength of a force, what must be increased.

1 answer:

6 0

"The distance that the force moves" is the one among the following choices given in the question that must be increased, if a simple machine reduces the strength of a force. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer helped you.

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3 years ago

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

CaHeK987 [17]

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

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

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

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

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

8 0

3 years ago

a moving ball rolls into a stationary ball. the total momentum of both balls after the collision will be

rosijanka [135]

The momentum of the rolling ball will have less momentum than before the collision and the stationary ball will have more momentum after the collusion.

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Jak możemy służyć innym ludziom. Pilne

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