On September 24, 622, the prophet Muhammad completes his Hegira, or “flight,” from Mecca to Medina to escape persecution. In Medina, Muhammad set about building the followers of his religion—Islam—into an organized community and Arabian power.
Answer:
Explanation:
F because it could be some one opinion
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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Answer:
Estas líneas imaginarias se llaman latitudes y longitudes. ... Las longitudes son semicírculos (líneas verticales) que van de norte a sur uniendo el Polo Norte y el Polo Sur. Las latitudes se denominan paralelos y las longitudes se denominan meridianos.
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Investors took more risks and the stock market declined.
