Response Definition and 486 Threads

Homework Statement Hi, Is the answer = 0.05 / s+0.05? Any quick steps to determine H(S) from cursve like that? Homework Equations The Attempt at a Solution

I messed up on the title of the thread.. I had a few questions but ended up solving them on my own. The only question I have is how to solve this ODE. Thanks. Homework Statement Solve the ODE (dx/dt)= f(t) - .1x Where f(t) = 2+sin(t)2. The attempt at a solution I faintly remember doing...

EASY QUESTION, URGENT RESPONse when u typically hit a reset buton on a breadboard, it is usually closing the circuit to ground. However let's say u want the reset button to power to vdd when hit and be grounded when not hit. How would u implement this?

Hello Forum, given a input=delta located at time t=0, the system will respond generating a function h(t). If the delta is instead located at t=t0 (delayed by tau), the system will respond with a function g(t)=h(t-tau), just a shifted version of the response for the delta a t=0... If...

1. Find the impulse response h(t) given: z'(t) + 4z(t) = 4x(t) 2. The attempt at a solution I first decided to divide through by 4 (1/4)z'(t) + z(t) = x(t) since we are looking for impulse response I made the following substitutions: let z(t) = h(t) let x(t) = dirac(t)...

A high-frequency response pressure transducer at one end of a 7 inch long (approx. 0.6 inch ID) tube will be used to measure static pressure pulsations in a duct of flowing air. Interest is for air at 70 F and at 460 F. The transducer end of the measurement tube has no appreciable volume...

We can easily design an digital filter with arbitrary amplitude-frequency response, but if we are required to use an analog filter to implement it, how to design? Any suggestion or reference to related paper would be appreciated. Thanks!

There are much better debaters here than I am, so I seek your advice. My question is, how would you respond to: "So you believe Obama. What do you say about this?" (Then the following link was supplied.) http://obamawtf.blogspot.com/2008/05/documented-lie-50-obama-claimed-he-had.html My...

Hi, I'm currently busy with a 'small' project of translating an analog device (synthesizer, based on schematics) into a digital counterpart. What I do is basically simulate the device using a SPICE model. Then I look at the outputs, and see if can fit some equation on it. Based on the...

This question is for a DSP class. I hope that I am posting somewhere appropriate. So given the impulse response: h[n]=((0.5)^n-(0.25)^n)u[n] find y[n]. Where do I start? I don't need an answer, just a nudge in the right direction.

In the program below - #include<stdio.h> char places = 4; main() { char m = 3; short i; char counter[places - 2][1]; for(i = 0;i<=places-3;i++) { counter[i][0] = m; m++; counter[i][1] = i - i; } printf("%d \n", counter[1][0]);//Value of counter[1][0] = 4...

Homework Statement I need to use MATLAB to solve these problems. http://users.bigpond.net.au/exidez/IVDP.jpg Homework Equations MATLAB The Attempt at a Solution a) R1=3.6; R2=R1; C1=33*10^-6; C2=22*10^-6; % defining the polynomial constants Vs=[R1*R2*C1*C2...

Homework Statement y(t) = \int ^{t}_{-\infty} e^{-(t-\tau)} x(\tau-2)d\tau Find h(t), given that the continuous time linear time invariant signal has input x(t) and output y(t). 2. The attempt at a solution I was wondering if I can simply manipulate the expression until i get it in the...

Hi, I am taking my first college physics class, and it says I need a response card clicker. Does somebody know what this is? What's its purpose? What does it do? How does it help me learn? Just wondering, any answers would be appreciated.

Homework Statement I am going to do some paraphrasing here, because the question is for automotive dynamics class, but is a pretty general question in its simplest form (1 degree of freedom): Find the time response to a step input of y=10cm. This is for a vertically oriented...

Homework Statement I need to find the forced response of a mass-spring-damper system by using Laplace Transform. Homework Equations Equation of motion: \ddot{x} + 2 \zeta \omega_n \dot{x} + {\omega_n}^2 x = \frac{F}{m} cos \left( \omega t \right) The Attempt at a Solution At...

Homework Statement Block A of mass 2M hangs from a cord that passes over a pulley and is connected to block B of mass 3M that is free to move on a frictionless horizontal surface. The pulley is a disk with frictionless bearings, having a radius R and moment of inertia 3MR^2. Block C if mass...

If I have a transfer function, and I need the frequency response of it, how do I go about doing it? Is there a easier way than inverse Laplace transforming it, then Fourier transforming that? Thanks

Hi, how can i find collision response between rectangle and circle like in this picture : i want to identify the direction and magnitude of V1 vector and the V2 vector after they collided , does anyone have some idea about this ?

I have a forced 2 degree of freedom system that I am trying to find the steady state responses to. I have determined the two equations of motions and found the [m], [k], [c], and {f} matrixes. However when i try to use eigen analysis ( q=phi'*[m]*phi ) I am unable to uncouple the two...

Hi, I'm trying to model the frequency response of a thin PZT disc using COMSOL, but I am not sure how to calculate the impedance Z vs frequency. I defined the current density at the top electrode as I=-imag(nJ_smpz3d) and then plotted V/I using the domain plot parameters in the postproc menu...

Consider a system with m = 100, c = 100 and k = 400. If y(t) = 3sin(1.5t), determine x(t) and ft(t). I don't have a picture handy but the equations for the system turn out like this. mx''+cx'+kx = cy' + ky Transfer function = x/y = cy' + ky / mx'' + cx' + kx then w/a laplace...

Hey does anyone understand how to do the 1995 Free Response AP Physics Mechanics question?? Specifically, the question about Potential Energy? I understand that F=-dU/dr but that is about it!

anyone have the solutions to the 1995 free response for physics C ap test? I have most of it done, but i just want to check it with the answers.

How do i plot an output response curve when input unit steps are (undamped natural frequency is normalised to 1): damping ration = 0, 0.1, 0.4,0.6,0.8,0.9 1 and 2 1) how do i plot a 2d plot for all curves on same graph. Time scale 0 - 10, steps of 0.2 seconds. 2) How do i make use of a 'for...

Here is the information for the free response question. Please help me! Answers must be in essay form. Labeled diagrams may be used to supplement discussion, but in no case will a diagram alone suffice. It is important that you read the question before you begin to write. 1. This transparent...

Homework Statement For circuit B on page 2, find: a) the time domain response v0 for a unit step input b) input/output transfer function T(s) = v0/v_in c) plot v0 vs. time d) plot sinusoidal steady state vs. frequency: the magnitude in dB and phase in degrees of T(s) Homework...

Please forgive my ignorance on what may be simple topics for most of you. I'm just trying to get my head conceptually around a ball launching pet project I'm fiddling with. If you take a rubber (tennis) ball, say of 5 oz mass, and blast it with a sprung plate moving at 70 mph, will the ball...

This is more of a math question but i feel like i will get more help among Electrical Engineers. I successfully found the step response of an RC circuit in the time domain using Laplace Transforms. But i can't seem to figure out how to do it with an RLC transfer function. I have the following...

hello..can anyone help me? i have the figure in the attachement, and i need to determine the final output value and the rise time..can first anyone explain to me what do we mean by output value and rise time..then what is the formula to calculate them?or we must use MATLAB commands to do it...

Nvm, solved!

hello all i just want to know why we use the inverse impulse response ? and i need a practical example on it ?/ and how?/? i need Quiqly answer as soon as u can please...:smile:

In my control theory textbook, frequency response descriptions is one of three main areas of the subject (the others being Laplace transfer functions and state space representations). My questions are: What is the purpose with frequency response in control theory? Why are not transfer...

Homework Statement A 100 kg box is being pulled along the x-axis by a student. The box slides along the a rough surface and its position x varies accoring to the equation x=.5tcubed +2t, where x is in meters and t is in seconds. a. Determine the speed of the box at t=0 b. Determine the...

I've run an experiment on an active filter. I am using the NI Elvis prototyping board. The frequency response is taken with the NI Bode analyzer and I saved the output data in a text file. The Bode analyzer amplitude spec is give as 12 or 16 bits, how do I calculate the amplitude error using the...

Homework Statement A 100 kg box is being pulled along the x-axis by a student. The box slides along the a rough surface and its position x varies accoring to the equation x=.5tcubed +2t, where x is in meters and t is in seconds. a. Determine the speed of the box at t=0 b. Determine...

Homework Statement y[n]= (x[n]+x[n-1]+x[n-2]) / 3 is the input output relationship Homework Equations Find the Frequency response. The Attempt at a Solution Ok I am very aware that I can easily find the impulse response and graph this and I can even get the general format for the...

Homework Statement A linear time-invariant filter is described by the difference equation y[n] = x[n] - x[n-2] a) Obtain an expresson for the frequency response of this system. b) Sketch the frequency response (magnitude and angle) as a function of frequency. 2. The attempt at a...

Hi, was just hoping that you could clear up a mis-understanding i have: In a frequency response curve, the y-axis is a decibel scale. Is this a comparison of the microphones response to the reference sound in relation to sound intensity. eg. If the microphone has a +5 db for a particular...

1. A hammer is pounding a nail straight down into a wooden board. Just before the hammer hits the nail, the speed of the hammer is 1.2 m/s. The hammer drives the nail into the wood and stops after the nail goes in a distance of 0.95 cm. The weight of the hammer head is 6N, and in addition to...

Homework Statement The problem is to find the motion of the electron of charge -e and mass m which is initially at rest and which is suddenly subjected to an electric field E= E0sin(\omegat). The following mathematical expression is safe and sound but I am having trouble with the Physics...

Homework Statement An automobile is traveling west. Can it have a velocity toward the west and at the same time have an acceleration toward the east? Under what circumstances. The Attempt at a Solution I wrote "Yes, the car can be moving west and speeding up with a positive velocity...

Homework Statement Determine the response factors for both Na and K with the Li internal standard Concentration Ratio Na : K : Li (in ppm) 5.0 : 5.0: 500 ------------------- Signal Ratio Na : K : Li (relative units) 4.9 : 6.4: 36.2 Homework Equations Ax/x = F(As/s)...

To All, I did a study and my response is defined as y = b1x1 + b2x2 + e where e ~N(0,1). I have y~N(4,33). In my data results, I did an ordinary least squares regression model for y = b1x1+b2x2+ e. The ANOVA is telling me the mean of y is 4, but MSE is 1. So here is my question. If I...

Homework Statement A polonium nucleus of atomic number 84 and mass number 210 decays to a nucleus of lead by the emission of an alpha particle of mass 4.0026 atomic mass units and kinetic energy 5.5 MeV. (1 atomic mass unit=931.5 MeV/c^2=1.66x10^-27kg.) The atomic number of the lead nucleus...

I chanced upon an article http://homepage.mac.com/ardeshir/TrainDisprovesRelativity.html which sought to show through a thought experiment that SR is inherently contradictory. Now I am not a pro in Relativity but from whatever understanding I have built up, here is the response that I...

Homework Statement Given the transfer function of a linear, time-invariant system H(z)=\frac{z^2+5z}{z^2+5} compute the impulse response. Homework Equations We are supposed to compute the inverse z-transform with partial fraction decomposition but the problem here is the irreducible...

i'm having a LOT of trouble understanding pulse train response in RL and CR circuits... could someone please recommend a good reading over the internet... i understand LR and RC response fairly better... and use the snapshot idea to get voltage equations etc... but its very confusing and i...

Homework Statement The function f has a Taylor series about x=2 that converges tp f(x) for all x in the interval of convergence. The nth derivative of f at x=2 is given by f^(n)(2)=((n+1)!)/3^n for n>=1, and f(2) =1. (a). write the first four terms and the general term of the Taylor series...

Homework Statement This is related to the frequency response topic. Given transfer function G(s) = 4/(s+1) and input is sinusoidal i.e. 2 sin (10t + 10) Homework Equations None. The Attempt at a Solution I have found out that the magnitude of the transfer function G(s) is...