Answer:
![\omega_{f} = 1000000\,\frac{rev}{day}](https://tex.z-dn.net/?f=%5Comega_%7Bf%7D%20%3D%201000000%5C%2C%5Cfrac%7Brev%7D%7Bday%7D)
Explanation:
The law of conservation of angular momentum states that angular momentum remains constant when there is no external moment or forces applied to the system. Let assume that star can be modelled as an sphere, then:
![\frac{2}{5}\cdot M\cdot R_{o}^{2} \cdot \omega_{o} = \frac{2}{5}\cdot M\cdot R_{f}^{2} \cdot \omega_{f}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5%7D%5Ccdot%20M%5Ccdot%20R_%7Bo%7D%5E%7B2%7D%20%5Ccdot%20%5Comega_%7Bo%7D%20%3D%20%5Cfrac%7B2%7D%7B5%7D%5Ccdot%20M%5Ccdot%20R_%7Bf%7D%5E%7B2%7D%20%5Ccdot%20%5Comega_%7Bf%7D)
The final angular speed is:
![\omega_{f} = \omega_{o}\cdot (\frac{R_{o}}{R_{f}})^{2}](https://tex.z-dn.net/?f=%5Comega_%7Bf%7D%20%3D%20%5Comega_%7Bo%7D%5Ccdot%20%28%5Cfrac%7BR_%7Bo%7D%7D%7BR_%7Bf%7D%7D%29%5E%7B2%7D)
![\omega_{f} = (1\,\frac{rev}{day} )\cdot (\frac{10000\,km}{10\,km} )^{2}](https://tex.z-dn.net/?f=%5Comega_%7Bf%7D%20%3D%20%281%5C%2C%5Cfrac%7Brev%7D%7Bday%7D%20%29%5Ccdot%20%28%5Cfrac%7B10000%5C%2Ckm%7D%7B10%5C%2Ckm%7D%20%29%5E%7B2%7D)
![\omega_{f} = 1000000\,\frac{rev}{day}](https://tex.z-dn.net/?f=%5Comega_%7Bf%7D%20%3D%201000000%5C%2C%5Cfrac%7Brev%7D%7Bday%7D)
mass and velocity
Explanation:
Momentum depends on two important factors which are the mass and velocity of a body.
Momentum = mass x velocity
- Momentum can be defined as the product of mass and velocity.
- It is a vector quantity that has both magnitude and directions.
- Momentum is a very important quantity in physics as it shows the impact of a force on another.
- The unit is Kgm/s²
- It is the same as impulse.
learn more:
Momentum brainly.com/question/2990238
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Answer:
The chemical compounds of living things are known as organic compounds because of their association with organisms and because they are carbon-containing compounds. Organic compunds, which are the compounds associated with life processes, are the subject matter of organic chemistry.
Explanation:
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Answer:
Let's simplify step-by-step.
3 + 7b + 2 + 2b
Combine Like Terms:
= 3 + 7b + 2 + 2b
= ( 7b + 2b ) + ( 3 + 2 )
= 9b + 5
Answer:
= 9b + 5
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