Oscillation Definition and 740 Threads

Homework Statement Over the years, buildings have been able to be built out of lighter and lighter materials. how has this affected the natural oscillation frequencies of buildings and the problems of resonance due to passing trucks, airplanes, or by wind and other natural sources of vibration...

Hello, I should preface that we are not physicists. We are just a few relatively ordinary guys that committed to building a large pendulum wave (6ft tall, 8ft long). The construction went very well. The frame and the individual pendulum are all strung up. We have a rather ingenious rig that...

Homework Statement Damping is negligible for a 0.164 kg mass hanging from a light 6.70 N/m spring. The system is driven by a force oscillating with an amplitude of 1.77 N. At what frequency will the force make the mass vibrate with an amplitude of 0.500 m? There are two possible solutions...

My original question was answered, but I would just like some clarification regarding one concept. In the derivation for the centre of percussion in this link (http://en.wikipedia.org/wiki/Center_of_percussion), what exactly is the variable A? How can it be determined (theoretically and/or...

Problem statement: An oscillating mass is hung from a vertical spring. Take the potential energy of the system when the spring is at the unstretched length to be zero for both spring and gravity. Calculate the gravitational potential energy, spring potential energy, and total potential energy...

Homework Statement A transverse wave travels along x-axis . what is direction of oscillation of particles ? Homework EquationsThe Attempt at a Solution I think the answer is xy plane but Wikipedia says its yz plane . Please explain how?

completing my advanced higher physics investigation - measuring acceleration due to gravity for the oscillating mass on a spring experiment so far I have included friction between the nail & oscillating rod as a possible source of error can anyone think of anything else? thank you very much...

Homework Statement Calculate the horizontal force dFhorizontal of a string .Show that for small oscillations this force is much smaller than the vertical force dFvertical responsible for the transverse oscillations. [I apolagize for the way the equations are written] Homework Equations...

please i am not getting what forced oscillation really is?please explain.as far as i understand let's take example of a swing ,if we give force to it initially and leave it ,swing will oscillate all by it's own and eventually will come to rest due to damping but if we give continuous force to it...

Homework Statement A mass m = 2.0 kg is attached to a spring having a force constant k = 990 N/m as in the figure. The mass is displaced from its equilibrium position and released. Its frequency of oscillation (in Hz) is approximately _____ . [/B] Homework Equations...

Homework Statement Homework Equations ΣF , ω=√(k/m), f=w/(2pi) The Attempt at a Solution I figured since the only forces acting on the block is the Spring force and a normal force in the downward position. Not a hundred percent sure of this though. For Disc: ΣFy= Fn - Fg - fs (static) = ma...

Homework Statement An oscillator consists of a block attached to a spring (k=400 N/m). At some time t, the position, velocity, and accelleration of the block are x = 0.100m, v = -13.6 m/s, a - 123 m/s2 A) Calculate the frequency of the oscillation for the system B)What is the mass of the...

Homework Statement A block with mass m is attached to the end of a spring with a constant spring k. It oscillates with a period of 2 seconds when pulled. When an additional 2 kg is add to the block it oscillates with a new period of 3 seconds. What is the mass of the black and the spring...

Homework Statement Given a pendulum with fixed length, at what angle does the pendulum have to be released at in order to not follow the standard formula for frequency? Homework Equations P = 2pi*sqrt(l/g) The Attempt at a Solution I know that this equation holds for "small" angles (theta <...

Homework Statement mass "m" object is located near the origin of the coordinate system. External force was exerted on the object depending on the coordinate by the formula of Fx=-4*sin(3*pi*x). Find the short oscillation period, and the potential energy depending on the coordinate. Homework...

I've been researching on Damped Oscillation (in vibrations) for a few days for a research paper, however I couldn't find any applications. I would be very thankful if anyone can tell me about its applications.

Homework Statement Here is a picture: http://puu.sh/bZtAu/82bdc201bc.png Homework Equations For force, F = (Ze^2)/4 * pi * e0 * R^3) * r f = sqrt(k/m) * 1/2pi Where e0 = vacuum permeability, 8.854 x 10^-12m and r = radius of hydrogen atom, 5.3 x 10^-11m The Attempt at a Solution I...

For the first part of the equation, I worked out k constant of a string which extended 12.6cm when a mass of 300g was suspended from it using the equation F = kx where F is the force applied and x its extension. So mg = xk, 300 x 9,81 = 0.126k, the answer was 23357N/m (23kN/m). The question...

Homework Statement Can you explain why the for Y , the direction of reflection is in and out of page ? p/s : the wording is in the photo. so i think it's needless to retype it again . Homework Equations The Attempt at a Solution is it because for reflected ray, the ray will...

I am curious what a photon looks like if we could observe it pass through space. It's also supposed to be oscillation of electromagnetic field. I don't understand what that means. Is it the field gets stronger and weaker and stronger and weaker, or spreads out and shrinks etc etc? Or if it's...

[SIZE="4"]Definition/Summary There are three masses of neutrino (they are unknown, but the differences of their squares is known approximately). There are three flavours of neutrino: electron- muon- and tau-, and a neutrino when it is created must be one of those three flavours. Each...

Hi! I posted a new thread about a week ago, but so far no one was able to help me: https://www.physicsforums.com/showthread.php?t=761892 I wasn't sure if I posted in the right forum, so I'm posting it here hoping to reach a wider audience :) Any help is greatly appreciated! -Tusike

Hi! I'm trying to compute air flow between chambers for a project. I'm having a numerical oscillation problem, and I've created an example Simulink program that highlights the cause. Please see the attached Simulink model for a clear understanding; in the following I will do my best to give...

Homework Statement Here is the prompt: http://i.imgur.com/GsZck8J.jpg Homework Equations E(max) = NABw = 2pi*NABf The Attempt at a Solution E(max) = NABw = 2pi*NABf = NA*B(nought)*2pi*f 1.50 / (NA*B(nought)*2pi) = f f = 1.50 / N / ((2.50/100)^2*pi) / 0.109 / (2pi) The...

Hi all! I am not sure how to prove mathematically that the expression for the probability that a neutrino originally of flavor α will later be observed as having flavor β P_{α \rightarrow β}=\left|<\nu_{\beta}|\nu_{\alpha}(t)>\right|^2=\left|\sum_{i}U_{β i}^*U_{α i}e^{-iE_it}\right|^2 (1) can...

I am facing difficulty in understanding a key point . Hence I am putting it here instead of Introductory Physics section . Here is a part of the solution provided by the teacher ,but it doesn't look convincing to me. Similar solution is provided here...

Homework Statement Hi, For one of my physics projects i need the natural frequency, or frequency of oscillation of a ball. I don't even know where to start. I've got a short article of an experiment similar to mine where they also use this natural frequency. So if my story is unclear, which...

Homework Statement A system consists of two blocks, each of mass M, connected by a spring of force constant k. The system is initially shoved against a wall so that the spring is compressed a distance D from its original uncompressed length. The floor is frictionless. The system is now...

Homework Statement An iron rod of length L is hung at a common point with threads of length 'l' which are attached to the two ends of the rod. The rod is displaced a bit in the plane of the threads. What is the length of the threads if the period of the swinging of the rod is the least, and...

Homework Statement The ratio of the time periods of small oscillation of the insulated spring and mass system before and after charging the masses is (a) ≥ 1 (b) > 1 (c) ≤ 1 (d) = 1 Homework Equations The Attempt at a Solution First I calculated the time period of...

Homework Statement Find the period of oscillation, T, of a little charged ring that is free to move along a vertical wire when placed equi-distant between two like charges above and below it. Small displacement only. Treat the “little” ring like a point charge and use the binomial expansion...

Hello! I have data of a damped oscillation (the movement on Y as it dies down in time). Imagine for example a ball that is hanging from a spring and it keeps bouncing up and down under the spring until it stops. The problem is I do not know how to find the axis around which the oscillation...

Homework Statement The figure shows a 200 g uniform rod pivoted at one end. The other end is attached to a horizontal spring. The spring is neither stretched nor compressed when the rod hangs straight down. What is the rod’s oscillation period? You can assume that the rod’s angle from vertical...

Homework Statement A molecular bond can be modeled as a spring between two atoms that vibrate with simple harmonic motion. Figure P14.63 shows an SHM approximation for the potential energy of an HCl molecule. For E < 4 * 10^-19 J it is a good approximation to the more accurate HCl...

Homework Statement A disk of mass M(=2 kg)and radius R(=5m) is pivoted at the center. The disk lies in the vertical plane and is free to rotate about the pivot .A particle of mass (=1 kg) is on the periphery of the disk. Find the time period of small oscillation of the system .Homework...

Homework Statement A small plate of mass m is suspended by a light string of length l .A monochromatic light beam starts falling on it and is completely absorbed. If the energy falling on the plate per unit time is W, then find the time period of oscillation? Homework Equations The Attempt at...

Homework Statement A particle rotates counterclockwise in a circle of radius 4.4 m with a constant angular speed of 11 rad/s. At t = 0, the particle has an x coordinate of 2.9 m and y > 0 . Part 1: Determine the x coordinate of the particle velocity at t = 1.22 s. Answer in units of m/s...

Homework Statement I'm supposed to determine the equation of motion of the two masses on the worksheet. I just need to start with that. Here is the problem statement: http://www.physics.udel.edu/~jim/PHYS211_14S/Homework%20assignments/Assignment%205%20-%20coupled%20oscillations.pdf...

I am in a lab class that is suppose to cover the content of the lecture, however this week we are doing things in lab we haven't even touched in lecture. I have been able to finish the entire report, however there is an extension problem on the lab that I'm not sure how to solve, because we...

Homework Statement Hi there.. I would really love a but of help with this question. It seems like the simple sort but there is one step that I seem to be missing.. I need the answer in Hz so basically its this .. one over 2∏ times √ of inductance times Capacitence. So here is the prob I can...

Homework Statement The equation for a damped oscillation is y(t)=Ae^{-\frac{b}{2m}t}cos(\omega't + \phi) We know that y(0)=0.5 and y'(0)=0. Find the values of A and ø and then plot the oscillation in MATLAB. Homework Equations See above The Attempt at a Solution When...

Homework Statement A homogene rod with length "l" is placed vertically, and a nail is stabbed on the top of the rod (now the rod has an axis). And then an impulse is given on the rod with the separation between the impulse given to the rod's axis is "d". Earth gravitational acc is represented...

A homogene rod with length "l" is placed vertically, and a nail is stabbed on the top of the rod (now the rod has an axis). And then an impulse is given on the rod with the separation between the impulse given to the rod's axis is "d". Earth gravitational acc is represented as g, the mass of the...

So if a rubber band is performing small-amplitude oscillations. Does this mean that it is performing quick oscillations or slow ones?

Homework Statement Figure shows a particle of mass m attached with four identical springs each of length L0. Initial tension in each spring is F0.Neglect gravity calculate the period of small oscillations of the particle along a line perpendicular to the plane of figure. (Take F0 = (0.01 π2)N...

Homework Statement Determine the oscillation period, as a function of energy E, when a particle of mass m moves in a field with potential energy V(x)=-V_0/cosh^2(\alpha x), for -V_0 < E < 0 with Vo positive. (a) First show that, with s=sinh (α x) and determining the appropriate smax ,the...

what is the difference between vibration, oscillation,simple harmonic motion and periodic motion?Is there any similarities between these terms? can anyone explain clearly pls.

1 object of 6.2 Kg hangs 1 balance of spring mass and performs an oscillation of each 0.3 sec If K = 2755 n/m? How much shortens the spring by removing the object? Use pi ^ 2 as 10

Homework Statement A bar with length l and homogeneous mass distribution (mass: m) can rotate around its fixed point O.The other edge of the bar is connected to the spring in the figure of constant k and length l, and the spring is fixed by its one edge at point P. The system is in the...

Homework Statement Consider 2 pendulums with the same length L, but 2 different masses Ma and Mb. They are coupled by a spring of spring constant k which is attached to the bobs (the masses). a) find the equations of motion b) find the frequencies and configurations of the normal modes...