Answer:
27
Explanation:
read about this in a recent study
One of the most powerful bankers of his era, J.P. (John Pierpont) Morgan(1837-1913) financed railroads and helped organize U.S. Steel, General Electric and other major corporations. ... Morgan used his influence to help stabilize American financial markets during several economic crises, including the panic of 1907
Answer:
For the communist powers, the end of colonialism was an effective strategy for undermining the Western alliance and its historic control over the international political economy. Decolonization was integral to the cold war confrontation and the struggle for ideological supremacy in the wider world.
Explanation:
In contrast to mechanical waves, electromagnetic waves can travel without a medium. This implies that electromagnetic waves can pass not only through solid objects like air and rock but also through empty space.
James Clerk Maxwell, a Scottish scientist, created a scientific theory to explain electromagnetic waves in the 1860s and 1870s. He realized that electromagnetic waves can be created when magnetic and electrical fields combine together. He compiled this electricity-magnetism relationship into what are now known as "Maxwell's Equations."
German physicist Heinrich Hertz used Maxwell's theories to explain how radio waves are transmitted and received. In honour of Heinrich Hertz, the hertz, or one cycle per second, is the unit of radio wave frequency. Two issues were resolved by his radio wave experiment. First, he had proven that the speed of radio waves was the same as the speed of light, which was something Maxwell had only theorized.
This demonstrated how radio waves are a type of light. Second, Hertz discovered how to create electromagnetic waves by causing the electric and magnetic fields to separate from wires.
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Answer:
B
Explanation:
The Japanese attack on Pearl Harbor made many Americans scared, so they isolated Japanese Americans so they would not attack them.
