An 0.075 c point charge's surrounding gaussian surface's electric flux is 8.5 ×10⁹Nm²/C.
<h3>Which is a gaussian surface?</h3>In three dimensions, the Gaussian surface is referred to as a closed surface where the flux of a vector field may be determined. The gravitational field, the electric field, or the magnetic field are all examples of these vector fields.
<h3>Why is a Gaussian surface drawn?</h3>We build a fictitious Gaussian surface around the supplied surface when the surface of which an electric field or flux must be established is asymmetrical or the surface area is challenging to obtain, such as the surface area for an infinitely long wire or plane. The Gaussian surface is said to utilize symmetry the best.
When a charge q is surrounded by a gaussian surface, the electric flux that passes through it is
= 0.075 / ( 8.85 ×10⁻¹²)
= 8.5 ×10⁹Nm²/C.
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Answer:
The speed of the police car is 33.98 m/s
Explanation:
Given;
first speed, v₁ = 35 m/s
first frequency, f₁ = 1370 Hz
second frequency, f₂ = 1330 Hz
second speed, v₂ = ?
Speed of sound is directly proportional to its frequency;
v = fλ
assuming the λ is constant, then,
Therefore, the speed of the police car is 33.98 m/s
Answer:
Telegraph distance will be 9.6 mile
Explanation:
We have given the voltage V = 9 volt
Contact resistance = 4 ohm
Relay resistance = 80 ohm
And wire has a resistance = 10 ohm/mile
We have given the current = 50 mA =0.05 A
According to ohm's law
So the resistance of wire = 180-4-80=96 ohm
So the length of the telegraph distance will be
Answer:
The end temperature is 174 °C
Explanation:
Ideal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.
The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:
P*V = n*R*T
where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas.
So, being:
and replacing:
2 atm*V= 2 moles* 0.082 *298 K
you get:
V= 24.436 L
Now, two moles of neon gas is expanded to 3 times the original volume while the pressure is reduced to 1.0 atm. Then you know:
Replacing:
1 atm*73.308 L= 2 moles* 0.082 *T
Solving:
T= 447 °K= 174 °C (being 0°C=273 °K)
<u><em>The end temperature is 174 °C</em></u>