The frequency tag has no wiki summary.
5
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5answers
928 views
How to Make RF Waves Visible
I understand RF (Radio Frequency) Waves are electromagnetic waves and a mode of communication for wireless technologies, such as cordless phones, radar, ham radio, GPS, and television broadcasts. Most ...
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0answers
22 views
Find Resonance Frequencies [closed]
How can I find the resonance frequencies for the harmonic dumped oscillator when it is written in this form?
$$y''\left(t\right)+2\zeta y'\left(t\right)+y\left(t\right)=\sin{(\omega t+\phi)}$$
where ...
1
vote
1answer
24 views
Why frequency and tension doesn't change in the two medium?
I am reading a book about wave mechanics. There are two different cord (one light and one heavy) connected together, one person waving the lighter one, the wave transverse to the right from the ...
2
votes
4answers
1k views
How does power consumption vary with the processor frequency in a typical computer?
I am looking for an estimate on the relationship between the rate of increase of power usage as the frequency of the processor is increased.
Any references to findings on this would be helpful.
3
votes
1answer
27 views
How to determine frequency components present in distorted signal, with the set of possible components already known?
I am trying to choose the best approach to digitally analyse a signal, which is a mix of an unknown number (but less than 16) fundamental signals at specific frequencies (e.g., sines).
The goal is ...
0
votes
1answer
276 views
How the frequency of the oscillation is affected?
Is the frequency of oscillation of a rotating disk affected if a mass hanging from (attached to the disk but pulled by gravity) the disk exerts a torque on the rotating disk?
0
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0answers
89 views
What should the amplitude be when plotting 1-sided Amplitude Spectrum?
I have a continuous signal $x(t)$ such that
$$x(t)=12\cos(6\pi t)+6\cos(24\pi t)+3\cos(30 \pi t)$$
and is asked to sketch a 1-sided Amplitude Spectrum of the signal $x(t)$ if sampled above the ...
4
votes
2answers
11k views
Why does wavelength change as light enters a different medium?
When light waves enter a medium of higher refractive index than the previous, why is it that:
Its wavelength decreases?
The frequency of it has to stay the same?
2
votes
1answer
73 views
Frequency Response RLC circuit - Current against Frequency graph - Symmetry?
I understand that in a Frequency Response experiment dealing with an RLC circuit, the graph of Current against Frequency is supposed to be symmetrical about the resonant frequency theoretically.
...
0
votes
2answers
222 views
Young's Modulus and Vibrating String Harmonics
I was wondering how Young's Modulus effects the resonant harmonics of a vibrating (string instrument) string. I know that the string's fundamental frequency is $$\frac{1}2 \times \text{Length} \times ...
-2
votes
0answers
73 views
Calculating the torsion constant [closed]
A thin metal disk with mass $2.00\times10^{-3}\,\mathrm{kg}$ and radius $2.20\,\mathrm{cm}$ is attached at its center to a long fiber. The disk, when twisted and released, oscillates with a period of ...
2
votes
3answers
109 views
Frequency of a Tuning Fork
Question: Which of the following affect the frequency of a tuning fork?
Tine stiffness
Tine length
The force with which it's struck
Density of the surrounding air
Temperature of the surrounding air
...
0
votes
3answers
154 views
Why are precise frequency standards important in the telecommunications industry?
I understand why having a precise definition of time can be very useful for navigation purposes. The GPS system works using the simple equation $d=ct$, where $c$ is the speed of light, so the ...
0
votes
2answers
71 views
Independence of frequency in sound waves?
Why does the frequency of sound wave depend only on the source? Why is the frequency and not any other "quality" independent of everything but the source?
And that said, why is velocity and ...
-1
votes
0answers
22 views
Small oscillation of ammonia molecule [closed]
How I can find frequency of small oscillation of ammonia molecule by using spring. Please write formula.
