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:
Cultural appropriation is harmful because it is an ex- tension of centuries of racism, genocide, and oppression. Cultural appropriation treats all aspects of marginalized cultures (also known as targets of oppression) as free for the taking.
There are many reasons why Ferdinand Magellan’s voyage was considered a
turning point in world history, but the best option would be that "(3) One of his ships was the first to circumnavigate
<span>Earth"</span>
Answer:
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Explanation:
The direct sale of tea by agents of the British East India Company to the American colonies undercut the business of colonial merchants. Prior to the Tea Act, colonial merchants purchased tea directly from British markets or smuggled from illegal markets. They then shipped it back to the colonies for resale.
Answer:
c. to urge women to support the nation by taking up jobs
Explanation:
