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Virty [35]
1 year ago
11

Different Types of Waves Quick Check

History
1 answer:
Snowcat [4.5K]1 year ago
5 0

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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which action did lonnie smith take to advance the cause of civil rights for african americans in texas
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Answer:

He is known for The Smith v. Allwright case that brought victory for African Americans in Texas primary voting

Explanation:

Lonnie smith was a dentist in Texas and is known for his case against Allwright that cancelled all white primaries in Texas. It was when Lonnie Smith went to vote for the Democratic primaries and was denied vote by the all-whites-primaries which had disenfranchised thousands of black people in Texas at the time, that NAACP Legal Defense Fund took up the case, filling a suit against the preccint election judge, AllWright based on 14th and 15th Amendment rights. NAACP won in Supreme Court appeal after failing in federal court ruling.

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Dmitriy789 [7]

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The gap between the rich and the poor grew. Large wealthy landowners took over the "abandoned" farms of those serving in the military. These soldiers came back and found that they had no land. They were basically homeless. Without land, they had no basis for earning a living and no say in the government. Without farms to earn an income, these men could fall into debt. This could lead to becoming slaves of the landowners. When the next census was held, they might even lose their citizenship if they didn't own Roman property. Citizenship was an important factor in the government of the republic. Citizens were expected to perform certain civic duties, such as voting. Without citizenship, the people would lose their voice.

Explanation:

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The correct answer is A.) ideology
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