It is the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).
Answer:
Both Technician A and Technician B
Explanation:
In order to gain a better understanding of the solution above let define some terms
Break Accumulator
We can define a break accumulator as storage that that helps generate the required pressure in order for the breaking system to respond faster this accumulator is charged by turning the steering wheel slowly at once from lock to lock now this build the pressure in the accumulator and one way to depressurize is it is by turning the ignition switch ""off""
Now a scan tool is a device that can interface with a car it can also be used to diagnose a car an get the diagnostic information to help in the cars diagnoses and also be used to reprogram a car
Answer:
Part(a): the capacitance is 0.013 nF.
Part(b): the radius of the inner sphere is 3.1 cm.
Part(c): the electric field just outside the surface of inner sphere is
.
Explanation:
We know that if 'a' and 'b' are the inner and outer radii of the shell respectively, 'Q' is the total charge contains by the capacitor subjected to a potential difference of 'V' and '
' be the permittivity of free space, then the capacitance (C) of the spherical shell can be written as
![C = \dfrac{4 \pi \epsilon_{0}}{(\dfrac{1}{a} - \dfrac{1}{b})}~~~~~~~~~~~~~~~~~~~~~~~~~~~(1)](https://tex.z-dn.net/?f=C%20%3D%20%5Cdfrac%7B4%20%5Cpi%20%5Cepsilon_%7B0%7D%7D%7B%28%5Cdfrac%7B1%7D%7Ba%7D%20-%20%5Cdfrac%7B1%7D%7Bb%7D%29%7D~~~~~~~~~~~~~~~~~~~~~~~~~~~%281%29)
Part(a):
Given, charge contained by the capacitor Q = 3.00 nC and potential to which it is subjected to is V = 230V.
So the capacitance (C) of the shell is
![C &=& \dfrac{Q}{V} = \dfrac{3 \times 10^{-90}~C}{230~V} = 1.3 \times 10^{-11}~F = 0.013~nF](https://tex.z-dn.net/?f=C%20%26%3D%26%20%5Cdfrac%7BQ%7D%7BV%7D%20%3D%20%5Cdfrac%7B3%20%5Ctimes%2010%5E%7B-90%7D~C%7D%7B230~V%7D%20%3D%201.3%20%5Ctimes%2010%5E%7B-11%7D~F%20%3D%200.013~nF)
Part(b):
Given the inner radius of the outer shell b = 4.3 cm = 0.043 m. Therefore, from equation (1), rearranging the terms,
![&& \dfrac{1}{a} = \dfrac{1}{b} + \dfrac{1}{C/4 \pi \epsilon_{0}} = \dfrac{1}{0.043} + \dfrac{1}{1.3 \times 10^{-11} \times 9 \times 10^{9}} = 31.79\\&or,& a = \dfrac{1}{31.79}~m = 0.031~m = 3.1~cm](https://tex.z-dn.net/?f=%26%26%20%5Cdfrac%7B1%7D%7Ba%7D%20%3D%20%5Cdfrac%7B1%7D%7Bb%7D%20%2B%20%5Cdfrac%7B1%7D%7BC%2F4%20%5Cpi%20%5Cepsilon_%7B0%7D%7D%20%3D%20%5Cdfrac%7B1%7D%7B0.043%7D%20%2B%20%5Cdfrac%7B1%7D%7B1.3%20%5Ctimes%2010%5E%7B-11%7D%20%5Ctimes%209%20%5Ctimes%2010%5E%7B9%7D%7D%20%3D%2031.79%5C%5C%26or%2C%26%20a%20%3D%20%5Cdfrac%7B1%7D%7B31.79%7D~m%20%3D%200.031~m%20%3D%203.1~cm)
Part(c):
If we apply Gauss' law of electrostatics, then
![&& E~4 \pi a^{2} = \dfrac{Q}{\epsilon_{0}}\\&or,& E = \dfrac{Q}{4 \pi \epsilon_{0}a^{2}}\\&or,& E = \dfrac{3 \times 10^{-9} \times 9 \times 10^{9}}{0.031^{2}}~N~C^{-1}\\&or,& E = 2.81 \times 10^{4}~N~C^{-1}](https://tex.z-dn.net/?f=%26%26%20E~4%20%5Cpi%20a%5E%7B2%7D%20%3D%20%5Cdfrac%7BQ%7D%7B%5Cepsilon_%7B0%7D%7D%5C%5C%26or%2C%26%20E%20%3D%20%5Cdfrac%7BQ%7D%7B4%20%5Cpi%20%5Cepsilon_%7B0%7Da%5E%7B2%7D%7D%5C%5C%26or%2C%26%20E%20%3D%20%5Cdfrac%7B3%20%5Ctimes%2010%5E%7B-9%7D%20%5Ctimes%209%20%5Ctimes%2010%5E%7B9%7D%7D%7B0.031%5E%7B2%7D%7D~N~C%5E%7B-1%7D%5C%5C%26or%2C%26%20E%20%3D%202.81%20%5Ctimes%2010%5E%7B4%7D~N~C%5E%7B-1%7D)
Answer:
a. (a) grating A has more lines/mm; (b) the first maximum less than 1 meter away from the center
Explanation:
Let n₁ and n₂ be no of lines per unit length of grating A and B respectively.
λ₁ and λ₂ be wave lengths of green and red respectively , D be distance of screen and d₁ and d₂ be distance between two slits of grating A and B ,
Distance of first maxima for green light
= λ₁ D/ d₁
Distance of first maxima for red light
= λ₂ D/ d₂
Given that
λ₁ D/ d₁ = λ₂ D/ d₂
λ₁ / d₁ = λ₂ / d₂
λ₁ / λ₂ = d₁ / d₂
But
λ₁ < λ₂
d₁ < d₂
Therefore no of lines per unit length of grating A will be more because
no of lines per unit length ∝ 1 / d
If grating B is illuminated with green light first maxima will be at distance
λ₁ D/ d₂
As λ₁ < λ₂
λ₁ D/ d₂ < λ₂ D/ d₂
λ₁ D/ d₂ < 1 m
In this case position of first maxima will be less than 1 meter.
Option a is correct .