Suppose the observer remains at x = 0 and a source emits a frequency fs. If...

Suppose the observer remains at x = 0 and a source emits a frequency fs. If the source travels from x = −100 to x = 100 (passing “through” the observer) over the interval of time 0 ≤ t ≤ 10. 1. How fast is the source traveling? 2. What is x(t) that gives the position of the source? 3. If fs = 440 hz, what is fo at each time t? (Write as a piecewise function.) 4. Does your answer match your intuition/experience?

Expert Solution

genius_generous answered 2 years ago

If a sound with frequency fs is produced by a source traveling along a line with...

If a sound with frequency fs is produced by a source traveling along a line with speed vs. If an observer is traveling with speed vo along the same line from the opposite direction toward the source, then the frequency of the sound heard by the observer is fo = c + vo c − vs fs where c is the speed of sound, about 332 m/s. (This is the Doppler effect.) Suppose that, at a particular moment, you are...

clear all close all % %*Parameter Settings %*************************** Fs=8192; %Sampling frequency (MATLAB's default) Ts=1/Fs; %Sampling time...

clear all close all % %*******Parameter Settings******** %********************************* Fs=8192; %Sampling frequency (MATLAB's default) Ts=1/Fs; %Sampling time or sampling period Vx=1; %Chirp signal time duration in seconds A=1; %Amplitude of chirp signal a=2*pi*3000; %Angular chirp rate (natural chirp rate is 3000) b=1000; %Initial natural frequency in Hertz % Nx=Vx*Fs; %Number of samples of the generated chirp signal Nxseg=round(Nx/16); %Length of a segment(1/16) of the chirp signal txaxis=0:Ts:Nx*Ts-Ts; %Time-sampled axis (vector of time values) Psx=1; %Pointer (>0) to the beginning of the...

2. Assume that the Lempel-Ziv (Dictionary) is applied to a source which emits {1,2,3}. The source...

2. Assume that the Lempel-Ziv (Dictionary) is applied to a source which emits {1,2,3}. The source output is given by 1233221233112233344. (a) Please apply the Lempel-Ziv coding, show how you applied? (b) Please write down the transmission sequence? (c) Please explain how you decode the transmission sequence that you have in the pre- vious part?

Assume that the Lempel-Ziv (Dictionary) is applied to a source which emits {1,2,3}. The source output...

Assume that the Lempel-Ziv (Dictionary) is applied to a source which emits {1,2,3}. The source output is given by 1233221233112233344. (a) Please apply the Lempel-Ziv coding, show how you applied? (b) Please write down the transmission sequence? (c) Please explain how you decode the transmission sequence that you have in the previous part?

Suppose that random variable X 0 = (X1, X2) is such that E[X 0 ] =...

Suppose that random variable X 0 = (X1, X2) is such that E[X 0 ] = (µ1, µ2) and var[X] = σ11 σ12 σ12 σ22 . (a matrix) (i) Let Y = a + bX1 + cX2. Obtain an expression for the mean and variance of Y . (ii) Let Y = a + BX where a' = (a1, a2) B = b11 b12 0 b22 (a matrix). Obtain an expression for the mean and variance of Y . (ii)...

x (Bins) frequency 0 0 1 0 2 0 3 2 4 5 5 8 6...

x (Bins) frequency 0 0 1 0 2 0 3 2 4 5 5 8 6 13 7 33 8 42 9 66 10 77 11 105 12 103 13 110 14 105 15 84 16 70 17 51 18 40 19 27 20 27 21 15 22 5 23 7 24 2 25 2 26 1 27 0 28 0 29 0 30 0 (7) On the Histogram worksheet, calculate all frequencies of the distribution using the table shown....

Let X and Y be random variables. Suppose P(X = 0, Y = 0) = .1,...

Let X and Y be random variables. Suppose P(X = 0, Y = 0) = .1, P(X = 1, Y = 0) = .3, P(X = 2, Y = 0) = .2 P(X = 0, Y = 1) = .2, P(X = 1, Y = 1) = .2, P(X = 2, Y = 1) = 0. a. Determine E(X) and E(Y ). b. Find Cov(X, Y ) c. Find Cov(2X + 3Y, Y ).

An airplane traveling at half the speed of sound emits a sound of frequency 5.29 kHz....

An airplane traveling at half the speed of sound emits a sound of frequency 5.29 kHz. (a) At what frequency does a stationary listener hear the sound as the plane approaches? kHz (b) At what frequency does a stationary listener hear the sound after the plane passes? kHz

Which of the following electron jumps in a hydrogen atom emits the photon of highest frequency?...

Which of the following electron jumps in a hydrogen atom emits the photon of highest frequency? a) n=2 to n=3 b) n=1 to n=2 3) n=3 to n=2 4) n=2 to n=1

In a region where the speed of sound is 330 m/s, a source of sound emits...

In a region where the speed of sound is 330 m/s, a source of sound emits a frequency of 440Hz. Assuming the observer is not moving, at what speed would the source have to move for the observed frequency to be 330Hz? Are they moving towards or away? A. Torwards B. Away C. This situation is not possible D. The Observer is at rest Part 2: Use the setup above. Enter the speed of the source with the units of...

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