Answer:
speed of the proton is 6.286 ×
m/s
Explanation:
given data
charge q= −60.0 nC
inner radius a = 20.0 cm
outer radius b = 24.0 cm
charge density ρ = −2.05 µC/m³
to find out
What is the speed of the proton
solution
we know that force on the proton due to this electric field is express as
F = q × E ...................1
here F is force and q is charge and E is electric filed so
if v be the speed of the proton in circular orbit than force will be
F = 
....................2
from equation 1 and 2
q × E = .......................3
so
here total charge Q on shell is
Q = ρ × V
here ρ is density and V is volume
Q = 
put here value
Q = 
Q = 50.01 × 
C
and
total charge enclosed by Gaussian surface is
qin = q + Q
qin = −60 × C - 50.01 × C
qin = - 110.01 × C
and
from Gauss law
E ×4×π×b² = 
E = ![\frac{110.01*10^{-9} }{\epsilon *4 *\pi *b^2[tex]}](https://tex.z-dn.net/?f=%5Cfrac%7B110.01%2A10%5E%7B-9%7D%20%7D%7B%5Cepsilon%20%2A4%20%2A%5Cpi%20%2Ab%5E2%5Btex%5D%7D)
E = 
E = 17189.06 N/C
so
from equation 3
q × E =
v = 
v = 
v = 6.286 × m/s
so speed of the proton is 6.286 × m/s
Answer:
we can see that this time period is independent of the mass of the child so answer would be same if the child mass is different
Explanation:
Natural frequency of a simple pendulum of L length is given as
so the time period of the oscillation is given as
so we will have
also from above formula we can see that this time period is independent of the mass of the child so answer would be same if the child mass is different
Conductors (something that allows electricity to flow easily) allow for electricity to flow easily. This would be the wires. If you don't have conductors, then you cannot have electricity flow.
Insulators (something that doesn't allow electricity to flow through it) is important because it allows us to be able to touch the cables or place them next to one another and not shock ourselves
Hope this helps
The answer is in the attachment
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