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-BARSIC- [3]
3 years ago
5

A charge +Q is located at the origin and a second charge, +4Q, is at distance (d) on the x-axis.

Physics
1 answer:
tatiyna3 years ago
5 0

Answer:

a)   x = ⅔ d , b) the charge must be negative, c) Q

Explanation:

a) In this exercise the force is electric between the charges, we are asked that the system of the three charges is in equilibrium, we use Newton's second law. Balance is on the third load that we are placing

         ∑ F = 0

        -F₁₂ + F₂₃ = 0

         F₁₂ = F₂₃

         

let's replace the values

        k Q Q / r₁₂² = k Q 4Q / r₂₃²

            Q² / r₁₂² = 4 Q² / r₂₃²

suppose charge 3 is placed at point x

        r₁₂ = x

        r₂₃ = d-x

             

we substitute

             1 / x² = 4 / (d-x) 2

             1 / x = 2 / (d-x)

             x = 2 (x-d)

             x = 2x -2d

            3x = 2d

              x = ⅔ d

b) The sign of the charge must be negative, to have an attractive charge on the two initial charges

c)  Q

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Answer:

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Explanation:

It is given that,

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h=ut+\dfrac{1}{2}at^2

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h=ut-\dfrac{1}{2}gt^2

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Match the speed to the section that describes.
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A material that can be hit without shattering is?<br> viscous, flammable, hard, malleable
nika2105 [10]
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If pressure is increased from 200 kPa to 300 kPa, and the original volume of gas was 1.5 L, what is the new volume? Assume the t
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Explanation:

Data

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