No.there can be electric field on the Gaussian surface even if the charge enclosed by it is zero.However ,net flux will be zero through the surface.
The question does not specify what z is so this answer could be completely wrong. However, if the question is in the context of the standard Gaussian distribution, the answer is 0.493613 (to 6 dp)
Perhaps if you read the question properly, you would not have to ask the question!
0.5m-1
That's a Gaussian distribution.
Surface area of a sphere: A = 4πr2So, surface area = 4pi52
The question does not specify what z is so this answer could be completely wrong. However, if the question is in the context of the standard Gaussian distribution, the answer is 0.493613 (to 6 dp)
divide 0.108 gm by 1 coulomb of charge because e.c.e equals mass in gm/charge
Surface area equals 864cm2
127.5
0.5m-1
Perhaps if you read the question properly, you would not have to ask the question!
That's a Gaussian distribution.
No.
0.6 m-1 is the ratio of surface area to volume for a sphere.
zero .. such an atom is neutral. No net charge
0.4 m-1 is the ration of surface area 588m2 to volume 1372m3 for a sphere.
The answer depends on what measure - volume, surface area - equals 375.