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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Causes for Unequal Distribution of Wealth and Income. Two major causes for the creation and distribution of wealth and income in the world are government policies and economic markets. As nations industrialize, they tend to move from a manufacturing-based economy towards a service-based economy.
Answer:
Grow crops to send to England.
During World War I, 116,516 US soldiers were killed and 204,002 were wounded. If you add those two numbers together, the total number of US soldiers killed or wounded was 320,518.
You can represent that as a fraction of the current population of Chicago like this:
For simplicity's sake (since I assume the Chicago population number is an estimate), let's round the number of soldiers killed or wounded down to 300,000. That would look like this:
We can simplify that down a lot by dividing the number of soldiers and the number of Chicagoans by the least common denominator of 300,000. That would give us this fraction:
So for every 1 US soldier killed or wounded in World War I, there are 10 Chicagoans living in the city today.
A <span>principle of government that defines the relationship between the central government at the national level and itsconstituent units at the regional, state, or local levels. Under this principle of government, power and authority is allocatedbetween the national and local governmental units, such that each unit is delegated a sphere of power and authority only itcan exercise, while other powers must be shared.</span>
The term federalism is derived from the Latin root foedus, which means "formal agreement or covenant." It includes theinterrelationships between the states as well as between the states and the federal government. Governance in the UnitedStates takes place at various levels and branches of government, which all take part in the decision-making process. Fromthe U.S. Supreme Court to the smallest local government, a distribution of power allows all the entities of the system to workseparately while still working together as a nation. Supreme Court justice <span>hugo l. black</span> wrote that federalism meant
a proper respect for state functions, a recognition of the fact that the entire country is made up of a Union ofseparate State governments, and a continuance of the belief that the National Government will fare best if theStates and their institutions are left free to perform their separate functions in their separate ways. (<span>Younger v.Harris</span>, 401 U.S. 37, 91S. Ct. 746, 27 L. Ed. 2d 669 <span>[1971])</span>
