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Afina-wow [57]
3 years ago
6

Can some one help me with this question its hard :( down below ill give brainliest

Physics
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0
I’m pretty sure it’s c sorry if I’m wrong
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Using the law of conservation of angular momentum, estimate how fast a collapsed stellar core would spin if its initial spin rat
Nataly_w [17]

Answer:

\omega_{f} = 1000000\,\frac{rev}{day}

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}

The final angular speed is:

\omega_{f} = \omega_{o}\cdot (\frac{R_{o}}{R_{f}})^{2}

\omega_{f} = (1\,\frac{rev}{day} )\cdot (\frac{10000\,km}{10\,km} )^{2}

\omega_{f} = 1000000\,\frac{rev}{day}

3 0
3 years ago
Help me PLEASE! 25 points!!!!! :)
NeTakaya

Answer:

A.

Explanation:

All the arrows align to the point right

7 0
3 years ago
What part of the plant transports water from the roots to the leaves?
shusha [124]
<span><span>1.       </span>Question : What part of the plant that transport water from its root to its leaves.
The answer is the stem. The stem connects the plant’s root and leaves, it is responsible for transporting water that is absorbed by the root going to the leaves, it is also responsible for transporting nutrients absorbed with the leaves coming from the sun or any nutrients going to the roots to make is grow faster and healthy. Stem is the one that connects leaves and root and the one the does the transporting job.</span>



7 0
3 years ago
5.
lesantik [10]

Answer:

It is B

it is called a jumper cable because it jumps the power from one car to the other

3 0
3 years ago
If you were to apply a force of 15N to a medicine ball with a mass of 10kg, what would its acceleration be
tresset_1 [31]

One of the equations for force is:  Force = mass × acceleration.

The force and mass are given and so:

F=15N

m=10kg

By plugging in these values we obtain:

F=ma\\\\15=10(a)\\

\frac{15}{10}=\frac{10(a)}{10}\\\\a=\frac{15}{10}=1.5m/s^2

So the acceleration is a=1.5m/s^2

6 0
3 years ago
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