Hello there.
<span>Which of the following scenarios would cause a sound to stop being produced?
</span><span>A. The vibration results in a molecule moving vertically.
</span>
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}


Answer:
Deflection at point C = 0.151 m
Explanation:
Central deflection due to uniformly distributed load w for simply supported beam

Central deflection due to point load P for simply supported beam

Here deflection

Deflection at point C = 0.151 m
Indirect but I not sure so please wait for someone else too answer also cause I don’t want you too get it wrong because if me if I the wrong answer