It totally depends on what kind of wave you're talking about.
-- a sound wave from a trumpet or clarinet playing a concert-A pitch is about 78 centimeters long ... about 2 and 1/2 feet. This is bigger than atoms.
-- a radio wave from an AM station broadcasting on 550 KHz, at the bottom of your radio dial, is about 166 feet long ... maybe comparable to the height of a 10-to-15-story building. This is bigger than atoms.
-- a radio wave heating the leftover meatloaf inside your "microwave" oven is about 4.8 inches long ... maybe comparable to the length of your middle finger. this is bigger than atoms.
-- a deep rich cherry red light wave ... the longest one your eye can see ... is around 750 nanometers long. About 34,000 of them all lined up will cover an inch. These are pretty small, but still bigger than atoms.
-- the shortest wave that would be called an "X-ray" is 0.01 nanometer long. You'd have to line up 2.5 billion of <u>those</u> babies to cover an inch. Hold on to these for a second ... there's one more kind of wave to mention.
-- This brings us to "gamma rays" ... our name for the shortest of all electromagnetic waves. To be a gamma ray, it has to be shorter than 0.01 nanometer.
Talking very very very very roughly, atoms range in size from about 0.025 nanometers to about 0.26 nanometers.
The short end of the X-rays, and on down through the gamma rays, are in this neighborhood.
Answer:
the are equivalent
Explanation:
i just learned about that
Answer:
I believe it would be Pennsylvania and New Jersey they both border Maryland. Didn't see any other states that border Maryland with West Virginia and Virginia being exempt from the question.
Explanation:
The force of friction is 25 N
Explanation:
For this problem, we can apply Newton's second law of motion along the horizontal direction:
where
is the net force in the horizontal direction
m is the mass of the block
is the horizontal acceleration
Here the block is moving at constant speed, so its acceleration is zero, therefore:
(1)
The net force in the horizontal direction can be written as:
(2)
where
- is the horizontal component of the pulling force, with F = 50 N being the magnitude and being the direction, acting forward
- is the force of friction, acting backward
Combining (1) and (2), we find the magnitude of the force of friction:
Learn more about friction:
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The kinetic energy would be 53,775J:)