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Kobotan [32]
3 years ago
7

A triangle has sidesof length 12cm 16cm and 21 cm determine the 3 angles contained in a triangle

Physics
1 answer:
Deffense [45]3 years ago
3 0
Angles will probably be 96° 35° and 49°
I tried to explain it with the working out, just re arrange the cosine rule for angles instead of side lengths.
if you need it explaining at all just message me :)
hoped it helped

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How does the magnitude of the electrical force between a pair of charged particles change when they are brought to half their or
Ostrovityanka [42]

Answer:

5. Quadruple

Explanation:

The electrostatic force between two charged particles is given by:

F=k\frac{q_1 q_2}{r^2}

where

k is the Coulomb's constant

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r is the separation between the charges

If the distance between the charges is reduced to half,

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So the new force will be

F'=k\frac{q_1 q_2}{(r/2)^2}=4(k\frac{q_1 q_2}{r^2})=4F

So, the force will quadruple.

4 0
3 years ago
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Alekssandra [29.7K]

Answer:

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Explanation:

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So... you would multiply 7.93 by 453.59237.

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Hope that helped!

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Answer:

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Explanation:

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