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Sergio039 [100]
3 years ago
15

How far apart are two conducting plates that have an electric field strength of 4.5 × 103V/m between them, if their potential

difference is 12.5 kV?
Physics
1 answer:
nalin [4]3 years ago
8 0

Answer:

Explanation:

Given

Electric Field Strength E=4.5\times 10^{3}\ V/m

Potential Difference between Plates is given by V=12.5\ kV

In conducting plates a Potential difference exist between two plate which accelerate the charge when put between the conducting plates

The potential difference is given by

\Delta V=Ed

where E=Electric Field strength

d=distance between Plates

d=\frac{\Delta V}{E}

d=\frac{12.5\times 10^3}{4.5\times 10^{3}}

d=2.78\ m

     

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m_a_m_a [10]

Answer:

Average speed = 1.2 m/s

Average velocity = 0.4 m/s

Explanation:

Average speed = total distance/total time

Average speed = (40 + 20)/(40 + 10)

Average speed = 60/50

Average speed = 1.2 m/s

Average velocity = displacement/time

Now, she ran 40 m south and ran 20 m back north which is in the direction of where she began the journey.

Thus;

Displacement = 40 - 20 = 20 m

Average velocity = 20/50 = 0.4 m/s

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Answer:

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Explanation:

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3 years ago
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The correct answer is the Sun.i hope that helped! if you have any questions or concerns about the answer i gave you please let me know!!
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3 years ago
An electron is projected with an initial speed Vo = 5.35x10^6 m/s into the uniform field between the parallel plates. The direct
mart [117]

Answer:

 E = 3.04 10⁻⁵ N / C

Explanation:

In this problem we can use the kinematics to find how long it takes the electron to travel the plates

Let's start by reducing the magnitudes to the SI system

              vₓ = 5.35 10⁶ m / s

              x = 2 cm = 2 10⁻² m

              y = 1 cm = 1 10⁻² m

             x = vₓ t

             t = x / vₓ

             t = 2 10⁻² / 5.35 10⁶

             t = 3,738 10⁻⁹ s

This time is also the time it takes for vertical movement to go from the center to the plate, let's look for acceleration with Newton's second law

              F = m a

              a = F / m = e E / m

              y = v_{oy} + ½ a t²

              v_{oy} = 0

We replace

              y = ½ e / m E t²

              E = 2 y m / e t²

Let's calculate

            E = 2  1 10⁻²  9.1 10⁻³¹ / (1.6 10⁻¹⁹  3,738 10⁻⁹)

            E = 18.2 10⁻³³ / 5.98 10⁻²⁸

            E = 3.04 10⁻⁵ N / C

5 0
2 years ago
Assume this is an acceleration graph, where the X axis represents time in seconds and the Y axis represent velocity in m/s. Whic
Vilka [71]

Answer:

D) Acceleration is positive and increasing.

Explanation:

Acceleration is defined as the rate of change of velocity per unit time; in formulas:

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

where \Delta v is the variation of velocity and \Delta t is the variation in time.

The graph shows the velocity vs the time of a moving object. We can see that \Delta v is the increment on the y-axis, while \Delta t is the increment on the x axis: therefore, the ratio \frac{\Delta v}{\Delta t} is the slope of the curve. In fact, in a velocity-time graph, the slope of the curve corresponds to the acceleration of the object.

In this particular graph, we see that the slope of the curve continues to increase: therefore, the acceleration is positive (because the slope is positive, since the velocity is increasing) and increasing (because the slope is increasing).

3 0
2 years ago
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