Answer:
James Madison was the 4th president
Explanation:
I know this because I searched the order of presidents from the first to now the 4th one one James Madison. I hope that this helped you! :)
Answer:
La Marseillaise is the name of national anthem!!!
Claude Joseph Rouget de Lisle was the writer.
Mark as brainliest and drop some thanks!!
C.
is the right answer i think because in the middle ages most people live in the countryside .
good luck
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
The best mood to describe the world when the cold war has ended is optimistic.
Optimistic for a new future without war, to live free, make decisions and see the world.
I hope this answered the question you have given
