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kiruha [24]
3 years ago
12

Two similar gold spheres are separated by a distance of

Physics
1 answer:
solong [7]3 years ago
5 0

Answer:

The answer to your question is the letter D. 2.5 N

Explanation:

The electrostatic force is the same in both directions,

If the electrostatic force on B due to A is 2.5 N, the magnitude of the electrostatic force on A due to B must be 2.5N.

Maybe the direction is different but the magnitude is the same.

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Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 3.3 cm . Two of
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Answer:

1.44\times 10^{-3} N

Explanation:

We are given that three charged particle are placed at each corner  of equilateral triangle.

q_1=-8.2 nC,q_2=-16.4 nC,q_3=8.0nC

q_1=-8.2\times 10^{-9} C

q_2=-16.4\times 10^{-9} C

q_3=8.0\times 10^{-9} C

Side of equilateral triangle =3.3 cm=\frac{3.3}{100}=0.033m

We know that each angle of equilateral angle=60^{\circ}

Net force=F =\sum\frac{kQq }{d^2}

Where k=9\times 10^9 Nm^2/C^2

If we bisect the angle at q_3 then we have 30 degrees from there to either charge.

Direction of vertical force  due to charge q_1 and q_2

Therefore, force will be added

Vertical  force=9\times 10^9\times q_3(q_1+q_2)\frac{cos30}{(0.033)^2})

Vertical net force=9\times 10^9\times 8\times 10^{-9}(-8.2-16.4)\times 10^{-9}\times 10^6\times\frac{\sqrt3}{2\times 1089}

Vertical  force =9\times 8(-24.6)\times 10^{-9}\times 10^6\times 1.732\times \frac{1}{2178}

Vertical  force=-1.41\times 10^{-3}N (towards q_1}

Horizontal component are opposite in direction then will b subtracted

Horizontal force=9\times 10^9\times 8\times 10^{-9}(-8.2+16.4) \times 10^{-9}\times \frac{sin30}{(0.033)^2}

Horizontal force=0.27\times 10^-3} N(towards q_2

Net electric force acting on particle 3 due to particle =\sqrt{F^2_x+F^2_y}

Net force=\sqrt{(-1.41\times 10^{-3})^2+(0.27\times 10^{-3})^2}

Net force=1.44\times 10^{-3} N

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