Answer:
Good question. The answer is abilities. or gender
Explanation:
Explanation:
It is given that,
Charge, 
Radius of the disk, R = 1.25 cm = 0.0125 m
(a) Electric field at a distance of 2 cm from the center of the disk. It can be calculated using the formula as :
![E=\dfrac{\sigma}{2\epsilon_o}[1-\dfrac{x}{\sqrt{x^2+R^2}}]](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B%5Csigma%7D%7B2%5Cepsilon_o%7D%5B1-%5Cdfrac%7Bx%7D%7B%5Csqrt%7Bx%5E2%2BR%5E2%7D%7D%5D)
Where
is the surface charged density, 


So, ![E=\dfrac{1.32\times 10^{-5}}{2\times 8.85\times 10^{-12}}[1-\dfrac{0.02}{\sqrt{0.02^2+0.0125^2}}]](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B1.32%5Ctimes%2010%5E%7B-5%7D%7D%7B2%5Ctimes%208.85%5Ctimes%2010%5E%7B-12%7D%7D%5B1-%5Cdfrac%7B0.02%7D%7B%5Csqrt%7B0.02%5E2%2B0.0125%5E2%7D%7D%5D)

The direction of electric field is outwards.
(b) Suppose that the charge were all pushed away from the center and distributed uniformly on the outer rim of the disk. So, the electric field due to the ring is :



The direction of electric field is outwards.
(c) If the charge is all brought to the center of the disk, The electric field at the center of disk is given by :



(d) he field in part (a) stronger than the field in part (b). This is due to the reason that the charge at the center of the ring is 0.
(e) The field in part (c) the strongest of the three fields because the for a point charge the charges are at same distances.
Answer:
E. d and O
Explanation:
"Light passing through a single slit forms a diffraction pattern somewhat different from those formed by double slits or diffraction gratings".
According to Huygens’s principle, "for each element of the wavefront in the slit emits wavelets. These are like rays that start out in phase and head in all directions. (Each ray is perpendicular to the wavefront of a wavelet.) Assuming the screen is very far away compared with the size of the slit, rays heading toward a common destination are nearly parallel".
The destructive interference for a single slit is given by:

Where
d is the slit width
is the light's wavelength
is the angle relative to the original direction of the light
m is the order od the minimum
I represent the intensity
When the intensity and the wavelength are incident normally the angular as we can see on the expression above the angular separation just depends of the distance d and the wavelength O.
Answer:
80.6 N/m
Explanation:
mass (m) = 63 kg
time (s) = 44 s
number of oscillations (n) = 8
stretched length of the cord (L) = 23 m
we can calculate the spring constant of the cord from the formula below
f =
x
...equation 1
where
f = frequency
k = spring constant
m = mass
frequency =
frequency =
= 0.18
now we can input all the required values into the equation 1
0.18 =
x 
0.18 x 2π = 
1.13 = 
= 
k = 63 x 1.28 = 80.6 N/m
Answer:
the are equivalent
Explanation:
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