The Great Depression had a huge impact on Americans. For one, it left some absolutely <em /><em>impoverished</em>, and people didn't have food, water, or even a place to live. They often had to line up at soup kitchens and live outside.
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.
learn more
brainly.com/question/25847009
#SPJ9
It was<span> 240 years ago today that the </span>Articles<span> of </span>Confederation<span>, the first American constitution, </span>was<span> sent to the 13 states for consideration.</span>
Answer:
A is the correct answer
Explain:
You can easily rule out D because there are still conflicts to this day. Now you have it easier to get the right answer. WW2 was the first truly modern war, in the civil war and evem WW1 they still waited to see the whites of peoples eyes before they fired. And the majority of the battles were actually fought in the north.
