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3 years ago

Which statement about a circuit is true?

Physics

2 answers:

andreyandreev [35.5K]3 years ago

3 0

A circuit is an unbroken loop of conductive material through which electrons flow hope this helps :)

Phoenix [80]3 years ago

3 0

Answer:

Option C

Explanation:

A circuit is a loop made up of a conducting wire. It is unbroken loop. A switch can be placed by which it can be controlled that whether the current would flow through it or not. A circuit comprises of a battery and a conducting wire. The battery creates a potential difference across the two ends of the wire because of which the current flows through it.

Thus, option C

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lys-0071 [83]

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Does time stop in a black hole

lbvjy [14]

Answer:

In standard GR, nothing exists at the center of a black hole. The center of a black hole is a singularity, and because GR fails at that point it is simply removed from the manifold. That means that the singularity is not part of spacetime.

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If this standing wave is 48.8 meters long from end to end, what is the wavelength?

Mrrafil [7]

The wavelength of a standing wave is 8.13 m.

<h3>What is a wavelength?</h3>

The distance between two successive troughs or crests is known as the wavelength. The peak of the wave is the highest point, while the trough is the lowest.

The wavelength is also defined as the distance between two locations in a wave that have the same oscillation phase.

The given data in the problem is;

String length(L)= 48.8 metere

Wavelength(λ)=?

The length of the wave having n nodes is found as;

L=nλ

Substitute the given value;

48.8 = 6λ

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2 years ago

By definition, acceleration is (5 Points)

Dovator [93]

Acceleration is a change in speed and/or direction

Explanation:

The acceleration of an object is defined as the rate of change of velocity, mathematically:

$a=\frac{\Delta v}{\Delta t}$

where

$\Delta v$ is the change in velocity

$\Delta t$ is the time taken for the velocity of the object to change

We notice that velocity is a vector quantity, so it consists of:

- A magnitude, which is called speed

- A direction

Since acceleration is the rate of change in velocity, this means that the acceleration is non-zero whenever $\Delta v$ is non-zero, which means that either the speed AND/OR the direction of the velocity is changing.

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- For an object moving in a uniform circular motion, the speed is constant while the direction is changing --> still, the object is accelerating

So the correct answer is

a change in speed and/or direction

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3 years ago

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klio [65]

Edison's education is most unique and relevant.

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His style of learning was though reading books on a variety of subjects, a self-educating environment that fosters independent learning which can be useful through his life.

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