The frequency of wave B is half the frequency of wave A
Explanation:
The wavelength, the speed and the frequency of a wave are related by the wave equation:
where
v is the speed of the wave
f is its frequency
is its wavelength
The equation can also be rewritten as
In this problem, we have wave A with wavelength and speed v, so its frequency is
Then we have wave B, whose wavelength is twice that of wave A:
And its speed is the same; Therefore, its frequency is
So, the frequency of wave B is half that of wave A.
Learn more about wavelength and frequency:
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(ANSWER: 300 ft-lbs) It’s pretty easy once you understand the process. Basically all you need to do is multiply 100 and 3. As you know, 100*3=300. Therefore, the answer should be 300 ft-lbs.
Answer:
n musical notation, stems are the, "thin, vertical lines that are directly connected to the [note] head." Stems may point up or down. ... There is an exception to this rule: if a chord contains a second, the stem runs between the two notes with the higher being placed on the right of the stem and the lower on the left.
Explanation:
Answer:
0.03 m
Explanation:
Mirrors work on the principle of reflection.
Reflection occurs when a ray of light hits a surface and bounces back into the origina medium at a different angle.
We can solve this problem by using the magnification equation:
where
y' is the size of the image
y is the size of the object
q is the distance of the image from the mirror
p is the distance of the object from the mirror
Here we have:
y = 0.10 m is the height of the object
p = 0.20 m is the distance of the object from the mirror
q = -0.06 m is the distance of the image from the mirror (negative because it appears behind the mirror, so it is a virtual image)
Solving for y', we find the size of the image:
And the positive sign indicates that the image is upright.