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bogdanovich [222]
3 years ago
13

"the total angular momentum of an object changes when a net external force acts on the system." This statement is:

Physics
1 answer:
labwork [276]3 years ago
6 0
Here is the answer of the given question above. "The total angular momentum of an object changes when a net external force acts on the system." This statement is <span>"sometimes true. it depends on the forces point of application". The answer is option D.
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For a point charge, how does the potential vary with distance from the point charge, r?
mr_godi [17]

For a point charge, how does the potential vary with distance from the point charge, r?

a constant

b. r.

c. 1/r.

d. 1/r^2.

e. r^2.

Answer:

The  correct option is  C

Explanation:

Generally for a point charge the electric potential is mathematically represented as

    V  =  \frac{k  Q  }{r }

Here we can deduce that the electric potential varies inversely with the distance i.e

      V  \  \alpha \  \frac{1}{r}

So

   

3 0
3 years ago
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Vinil7 [7]
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Using kinematic equation v = u + at

v = 11.2 + 10 x 8 = 11.2 + 80 = 91.2 m/s.

Therefore final velocity is 91.2 m/s.
7 0
3 years ago
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Atoms with many electron shells will let go of their electrons more easily than those with fewer shells.
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True

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Hope this Helps

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