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2 years ago

Which describes the electric field at the center of a ring of uniform negative charge?.

Physics

1 answer:

Bingel [31]2 years ago

7 0

Answer:

A negatively charged particle -q is placed at the center of a uniformly charged ring, where the ring has a total positive charge Q as shown in the following figure. The particle, confined to move along the x axis, is moved a small distance x along the axis ( where x << a) and released. Show that the particle oscillates in simple harmonic motion with a frequency given by,

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The velocity of a body of mass 20kg decreases from 20m/s to 5m/s in a distance of 100 m force on body is ?

MrRissso [65]

Answer:

hope it helps brainliest pls. and the answer is the one that is circled in red color.

Explanation:

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3 years ago

A wire of length L is wound into a square coil with 117 turns and used in a generator that operates at 60.0 Hz and 120 V rms val

Goryan [66]

Answer: The length L of the wire used to construct the coil is 191.4m

Explanation: Please see the attachments below

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3 years ago

Show steps on how to choose repeating variables in Buckingham Pi Theorem.

svlad2 [7]

Buckingham π theorem states that an equation involving a certain number 'n' of variables which are expressible in terms of 'k' independent fundamental physical quantities can be expressed in terms of dimensionless parameters.<span>
p = n - k
Keeping the statement of </span><span>Buckingham Pi Theorem,
We can proceed as follows:
Please see the attachments.I hope it helped

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3 years ago

A woman steps in front of a child to keep him from running off. which term best describes this example? negative work positive w

lana [24]

Answer:

negative force

Explanation:

Here woman is applying the force to stop the child or to prevent him from running.

Here we know that the force applied by the woman is opposite to the motion of child but here the child is not displaced by this applied force but the child is only prevented his running.

So here the work done by the woman is zero as there is no displacement by this force.

But here we can say that the the force of woman is against the motion of child so here this force is opposite force and hence it is termed as negative force here.

so correct answer will be

negative force

4 0

4 years ago

Read 2 more answers

Why the distance between two loudspeakers have to be large??

tangare [24]

Answer:because each speaker has a large angle of of coverage (horizontal and vertical)

They place them apart to prevent their signals (sounds produced) from getting into each other's way as this may cause interference (which may be destructive.

Explanation:

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4 years ago