?/1 Jorge traveled 5 miles north to school. He then traveled 3 miles west to the store. Then he left the store and traveled 5 mi
1 answer:
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a) The charge on the outer surface is
b) The number of ions is
Explanation:
a)
The membrane behaves as a parallel plate capacitor, whose capacity is given by the equation
where
k = 4.3 is the dielectric constant
is the vacuum permittivity
is the surface area
is the distance between the two plates
Substituting,
The capacity of the membrane is related to the potential difference between the two surfaces by
where here we have
Q = excess charge on one surface
is the potential difference between the two surfaces
Solving for Q, we find
b)
We said that the net charge on the outer surface is
The charge of one K+ ions is equal to the electron charge
Therefore, the number of ions on the outer surface can be found by dividing the total charge by the charge of a single ion:
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Answer:
595391.482946 m/s
Explanation:
E = Energy = 1.85 keV
I = Current = 5.15 mA
e = Charge of electron =
t = Time taken = 1 second
m = Mass of proton =
Velocity of proton is given by
The speed of the proton is 595391.482946 m/s
Current is given by
Number of protons is
The number of protons is