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How long should the crystal be to provide an overall gain of 4 at the central frequency when Yv0....
Question 1 Design a lowpass filter, with cutoff frequency wc. The maximum gain of the fitler should be A dB, and the filter gain at angular frequency ws should be no more than As dB. Use as few circui...
Question 1 Design a lowpass filter, with cutoff frequency wc. The maximum gain of the fitler should be A dB, and the filter gain at angular frequency ws should be no more than As dB. Use as few circuit elements as possible. wc 1552(rad/s) A 22,48 (dB) ws 3776 (rad/s) As -17,98 (dB)
how long should a closed tube in air be such that it's fundamental frequency is 250Hz?...
how long should a closed tube in air be such that it's fundamental frequency is 250Hz? use V=343m/sec (B) what is the frequency of its next possible mode ?
How long should a simple pendulum be so it oscillates with a frequency of 0.50 Hz...
How long should a simple pendulum be so it oscillates with a frequency of 0.50 Hz on Earth?
Consider the phonon dispersion relation for a 10cm long GaAs crystal, shown in the figure below....
Consider the phonon dispersion relation for a 10cm long GaAs
crystal, shown in the figure below.
(a) How can you obtain the phonon speed from the dispersion
relation? What is the speed of the phonons with the shortest
wavelength? (2 marks) (b) Which is more effective at carrying
energy across a solid: long wavelength or short wave- length
phonons? Why? (2 marks) (c) What is the wavelength of the
fundamental mode of this crystal? (1 mark) (d) In the long...
What is relative frequency and when might this be used? Provide an example of when you...
What is relative frequency and when might this be used? Provide an example of when you use relative frequency. How can you use SPSS to find a frequency table that includes relative frequency?
Approximately how long should it take 7.8 kg of ice at 0∘C to melt when it...
Approximately how long should it take 7.8 kg of ice at 0∘C to melt when it is placed in a carefully sealed Styrofoam ice chest of dimensions 25 cm × 35 cm × 55 cm whose walls are 1.5 cm thick? Assume that the conductivity of Styrofoam is double that of air and that the outside temperature is 28 ∘C.
A helium-neon (He-Ne) laser has a gain bandwidth (defined as the frequency interval over which the...
A helium-neon (He-Ne) laser has a gain bandwidth (defined as the frequency interval over which the laser gain equals or exceeds the minimum threshold for gain) given by ΔνG=2.5ΔνG=2.5 GHz, centred on λ=633λ=633 nm emission wavelength. a) Determine the maximum length of the He-Ne resonator when only one resonant axial mode can oscillate at any given time. (cm) b) By what length must the resonator be changed in order to tune the frequency of this He-Ne (i.e. with one resonant...
(b) If the op-amp is realized by the circuit shown in Fig. 4( find the low-frequency gain and estimate the dominant pol...
(b) If the op-amp is realized by the circuit shown in Fig. 4( find the low-frequency gain and estimate the dominant pole pi as a function of the appropriate small-signal parameters and capacitor values. The unity-gain buffer has very high input resistance and very low output resistance. Assume that the voltage gain of the 2nd stage is very large and make any appro priate approximations. Then find the expression for the unity-gain frequency assuming that it is well within the...
4 pts How should the frequency of an oscillator be reported if its period is measured...
4 pts How should the frequency of an oscillator be reported if its period is measured to be T 1.6 0.2 s? Note that the frequency is simply the inverse of the period, i.e., f-: 1 /T. Hint, the derivative of frequency with respect to the period, 7and the uncertainty of one quantity y that depends solely on one variable x is given by Ơy where the derivative is evaluated at the average value of a. Since frequency is the...
How does frequency-dependence determine what a forager should do when deciding whether to be a producer...
How does frequency-dependence determine what a forager should do when deciding whether to be a producer or a forager?
Consider the phonon dispersion relation for a 10cm long GaAs
crystal, shown in the figure below.
(a) How can you obtain the phonon speed from the dispersion
relation? What is the speed of the phonons with the shortest
wavelength? (2 marks) (b) Which is more effective at carrying
energy across a solid: long wavelength or short wave- length
phonons? Why? (2 marks) (c) What is the wavelength of the
fundamental mode of this crystal? (1 mark) (d) In the long...
(b) If the op-amp is realized by the circuit shown in Fig. 4( find the low-frequency gain and estimate the dominant pole pi as a function of the appropriate small-signal parameters and capacitor values. The unity-gain buffer has very high input resistance and very low output resistance. Assume that the voltage gain of the 2nd stage is very large and make any appro priate approximations. Then find the expression for the unity-gain frequency assuming that it is well within the...
4 pts How should the frequency of an oscillator be reported if its period is measured to be T 1.6 0.2 s? Note that the frequency is simply the inverse of the period, i.e., f-: 1 /T. Hint, the derivative of frequency with respect to the period, 7and the uncertainty of one quantity y that depends solely on one variable x is given by Ơy where the derivative is evaluated at the average value of a. Since frequency is the...
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Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
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Question 501 pts
The rental rate of capital to the firm increases. Which of the
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