What is a force that does not involve physical contact between two objects?
2 answers:
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Answer:
U = - 4 x
Explanation:
ΔV = potential difference = Volts
q = charge on electron = C
electric potential energy is given as
U = q ΔV = ( ) (
)
= - 4 x
Answer:
Part A:
Part B:
Explanation:
Part A:
To calculate the number of free electrons n we use the following formula::
n=1.5N-Au
Where N-Au is number of gold atoms per cubic meter
So:
Part B:
n is calculated above which is 8.85*10^{28}m^{-3}
Charge on electron=1.602*10^{-19}
Elec- Conductivity= 4.3*10^{7}