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OverLord2011 [107]
3 years ago
7

How do you find the answer to this

Physics
1 answer:
DENIUS [597]3 years ago
4 0
Call ChuckNorris he is always the answer ALWAYSSSSSs....
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A energy storage system based on a flywheel (a rotating disk) can store a maximum of 4.0 MJ when the flywheel is rotating at 20,
mariarad [96]

Answer:

Moment of inertia of the flywheel, I=1.82\ kg-m^2          

Explanation:

Given that,

The maximum energy stored on  flywheel, E=4\ MJ=4\times 10^6\ J

Angular velocity of the flywheel, \omega=20000\ rev/s=2094.39\ rad/s

We need to find the moment of inertia of the flywheel. The energy of a flywheel in rotational kinematics is given by :

E=\dfrac{1}{2}I\omega^2

I is the moment of inertia of the flywheel

On rearranging we get :

I=\dfrac{2E}{\omega^2}

I=\dfrac{2\times 4\times 10^6}{(2094.39)^2}

I=1.82\ kg-m^2

So, the moment of inertia of the flywheel is I=1.82\ kg-m^2. Hence, this is the required solution.

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3 years ago
Imagine that a star-forming cloud collapses but retains all of its mass in a single blob. In order to conserve angular momentum,
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Answer:

The correct answer is spin faster.

Explanation:

The angular momentum or kinetic moment is a physical magnitude, rotational equivalent of the linear momentum and represents the amount of rotational movement of an object. It is a vector quantity that characterizes the inertia properties of a body, which rotates in relation to a certain point. It is found in the three mechanics (classical, quantum and relativistic mechanics). In the International System of Units the angular momentum is measured in kg · m² / s. This magnitude plays a role similar to the linear moment in the translations with respect to the rotations.

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Low place to a high place I think
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If you start at 100% and divide it by 2 it will equal 50% then divide by 2 again and the answer will be 25%. Your answer should be 25%
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Radiation that comes from the sun is being beemed at earth atmosphere
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