It takes nd/ (lambda*f) time or a short pulse of light to travel from one end of the glass to the other.
If we talk about free space, that is, vacuum, light travels at a speed of 3x10^8 m/s, yet inside a glass light travels at a speed of v= c/n, where v is the velocity of the light and n is the refractive index. Now,
v=d/t,
so t= d/v
t= d/ (c/n)= n*d/c
c= lambda*f
t= nd/(lambda*f)
here, d is the thickness of the block, t is the time required and c refers to speed of light.
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A: makes the most sense since Bull Run was a pitched battle.
B:Union didn't win that much early in the war
C: Doesn't make sense since the Union was an Industrial power house.
D:is unlikely because there was peace time training for the Union standing army.
So your answer should be A.
Mortgage<span> loans commonly have that trait</span>
In our solar system, the biggest planet is jupiter
Answer:
strength or energy as an attribute of physical action or movement.
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