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horsena [70]
3 years ago
10

Three identical metallic conducting spheres carry the following charges: q = +3.8 μC, q = −2.6 μC, and q = −8.8 μC. The spheres

that carry the charges q and q are brought into contact. Then they are separated. After that, one of those two spheres is brought into contact with the third sphere that carries the charge q. What is the final charge on the third sphere?
Physics
1 answer:
Kitty [74]3 years ago
6 0

Answer:

-4.1μC is the final charge on the third sphere

Explanation:

From the given data, q1 and q2 are brought into contact as they are both conductors,  as such there will be evenly distribution of charges.

a) charge on each sphere(Q) = q1 + q2 / 2

= +3.8 μC + (- 2.6 μC) / 2 = 1.2μC/2 = 0.6μC

b) Now, one of those two spheres is brought into contact with the third sphere ; Q is brought into contact with q3 = Q + q3 / 2

= 0.6μC - 8.8 μC /2 = -8.2 μC/2

= -4.1μC is the final charge on the third sphere.

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ki77a [65]

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<h3>What is mechanical energy?</h3>

Potential energy plus kinetic energy are combined to form mechanical energy. According to the principle of mechanical energy conservation, mechanical energy is constant in an isolated system when only conservative forces are acting on it. Potential energy increases when an object moves in the opposite direction of a conservative net force. Kinetic energy also changes as an object's speed, not velocity, changes. However, nonconservative forces, such as frictional forces, will always be present in real systems; however, if these forces are of minimal magnitude, mechanical energy changes little, making the idea of its conservation a reasonable approximation.

For completing the vertical circle the minimum speed at the bottom must be \sqrt{5gR}

so conserving mechanical energy

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To learn more about mechanical energy, visit:

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⇒  \frac{656.46}{0.04} =\frac{v}{3\times 10^8}

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8 0
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In my trigonometry class, we were assigned a problem on Angular and Linear Velocity.
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1) 0.0011 rad/s

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Explanation:

1)

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2)

For an object in circular motion, the relationship between angular velocity and linear velocity is given by the equation

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Answer:

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3 years ago
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