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Svetradugi [14.3K]
3 years ago
5

On which factor does the inertia of rest depends​

Physics
1 answer:
daser333 [38]3 years ago
8 0

Answer:

Inertia depends upon the force applied .

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What are the principles of electrodynamic​
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Answer:

the branch of mechanics concerned with the interaction of electric currents with magnetic fields or with other electric currents.

Explanation:

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3 years ago
A wheel has a rotational inertia of 16 kgm2. Over an interval of 2.0 s its angular velocity increases from 7.0 rad/s to 9.0 rad/
german

Answer:

<h2>128.61 Watts</h2>

Explanation:

Average power done by the torque is expressed as the ratio of the workdone by the toque to time.

Power = Workdone by torque/time

Workdone by the torque = \tau \theta = I\alpha * \theta

I is the rotational inertia = 16kgm²

\theta = angular\ displacement

\theta = 2 rev = 12.56 rad

\alpha \ is \ the\ angular\ acceleration

To get the angular acceleration, we will use the formula;

\alpha = \frac{\omega_f^2- \omega_i^2}{2\theta}

\alpha = \frac{9.0^2- 7.0^2}{2(12.54)}\\\alpha = 1.28\ rad/s^{2}

Workdone by the torque = 16 * 1.28 * 12.56

Workdone by the torque = 257.23 Joules

Average power done by the torque = Workdone by torque/time

=  257.23/2.0

= 128.61 Watts

8 0
3 years ago
Which statement is true if the refractive index of medium A is greater than that of medium B?
allsm [11]

Answer:

I think it is C

Explanation:

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A boy and his dog run at 3m/s for 4min. How far do they run?
Angelina_Jolie [31]
1) 4min = 4*60 sec = 240 sec
2) Distance = speed times time = 3 * 240 = 720 m
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3 years ago
You should be particularly careful a restraining a struggling rabbit because it can
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