Answer:
Radio waves have a wavelength between
and ![10^{-12}m](https://tex.z-dn.net/?f=10%5E%7B-12%7Dm)
While,
X rays have a wavelength between 1m and 10km.
=> It is one of the condition of diffraction that the obstacle (coming in the way) must be comparable with the size of the wavelength.
=> This shows, that radio waves have a wavelength which is comparable with the size of buildings and can really easily diffract through it
=> While, X-rays are big enough to diffract through the wall.
So, if an X-ray technician stands behind a wall during the use of her machine, she will remain safe.
The answer is the equator because the equator in receives sunlight all year round and has a constant average temperature all year round so it is least likely to affect the seasons.
Answer:
30 m
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Explanation:
<u>We are given:</u>
Initial velocity (u) = 10 m/s
Final velocity (v) = 20 m/s
Time interval (t) = 2 seconds
Distance travelled by the bus (s) = s meters
<u>Solving for the distance travelled:</u>
<u>Solving for the acceleration:</u>
v = u + at [<em>first equation of motion</em>]
20 = 10 + a(2) [<em>replacing the given values</em>]
2a = 10 [<em>subtracting 10 from both sides</em>]
a = 5 m/s² [<em>dividing both sides by 2</em>]
<u>Solving for the distance:</u>
s = ut + 1/2 (at²) [<em>second equation of motion</em>]
s = 10(2) + 1/2(5)(2)² [<em>replacing the given values</em>]
s = 20 + 10
s = 30 m
Therefore, the bus travelled 30 m in the given time interval
The freshwater fish would be effected. This would happen because of a drastic change in their habitat.
KE= 0.5(m)(v^2)
KE= 250,000 J