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allsm [11]
3 years ago
13

Gauss's Law You are in the presence of a uniform electric field of strength E that is pointed in the x direction. You have 2 Gau

ssian surfaces; one is a square of side length L, and the other is a circle of diameter L. Which has the larger electric flux value?
Physics
1 answer:
BartSMP [9]3 years ago
7 0

Answer:

the flow is the same on both surfaces

Explanation:

Gauss's law says that the electric field flow through a Gaussian surface is equal to the charge inside the surface divided by the electric permittivity constant, the equation is

          Φ =∫ E . dA = q / ε₀

The point is the scalar product and the bold ones indicate vector,

Let us examine the situations that give us, the elective field is uniform so that the field lines that cross the surface of the square are constant and perpendicular to two sides, therefore in flow on one side it is equal to the flow on the other side, but of negative sign; so the net flow is zero, in the two sides there are 90º between the field lines and the normal to the surface (dA) so the flow is zero

Now let's analyze the circular surface in this case the angles between the field that is uniform, lines are parallel, and the normal circle changes at each point, but by the symmetry of the circle the angle that there is an area at the top is the same of the surface at the bottom connected by a diameter, the net flow in each pair of points is canceled and consequently in flow throughout the circle is zero.

  We can also see the same result if we see that within each surface there are no charges, so the right of the Zero Gas Law

From the above described the two surfaces have zero flow

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Refer to the diagram shown below.

Still-water speed  = 9.5 m/s
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The velocity relative to the bank is
V = √(9.5² + 3.75²) = 10.21 m/s

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A wagon has a mass of 100 grams and an
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Answer:

Net force on the wagon is 200 N

Explanation:

As we know by Newton's II law that net force on the system of mass is given as product of mass and acceleration

Here we know that

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now we have

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An airplane flies with a velocity of 55.0 m/s [ 35° N of W] with respect to the air (this is
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Answer:

21 m/s.  

Explanation:

The computation of the wind velocity is shown below:

But before that, we need to find out the angles between the vectors

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Now we have to sqaure it i.e given below

v^2 = 55^2 + 40^2 - 2 · 55 · 40 · cos 18°

v^2 = 3025 + 1600 - 2 · 55 · 40 · 0.951

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1.64 * 10^(-5) m

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Parameters given:

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The angular separation when there are 2 slots is given as

θ = λ/2d

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d = λ/2θ

d = (589 * 10^(-9))/(2 * 0.018)

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The study 'characterizing vibration-assisted atomic force based nanomachining' aims to elucidate nanomachine properties for heterogeneous materials.

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