How does an electroscope detect negative static electricity

1 answer:

5 0

<span> An electroscope that might have a static charge is tested on a metal surface. From there, the charges move to the metal and straight to the foil leaves. If they repel, or move away from each other, that means they have identical charges. This applies for both positive and negative static electricity.

work cited: School of champions, Google
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If a machine exerts a force of 250N on an object and no work is done, what must have occurred?

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The object did not move / was kept from moving.

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Myopia

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a 2.35 water bucket is swung in a full cirlce of radius 0.824 m just fast enough so that the water doesn't fall out the top mean

tiny-mole [99]

Answer:

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At the top position of the circular trajectory, the normal reaction is zero:

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$mg = m \frac{v^2}{r}$

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v is the speed of the bucket

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Line up in a direction parallel to the magnetic field lines<span />

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<h3>What is magnetic force?</h3>

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$\rm F=qvBsin\theta$