Oscillating Definition and 304 Threads

Homework Statement Seiche in a lake. The simplest motion of water in a lake can be approximated as simply the water surface tilting but remaining flat. Imagine a lake of rectangular cross section of length L and with depth h where (h<<L). The problem resembles that of the simple pendulum, the...

Homework Statement Make an order-of-magnitude estimate of the (magnitude of the) oscillating optical-frequency electric and magnetic fields in the vicinity of a light bulb. Homework Equations I have no idea as to what equations I should be using! The Attempt at a Solution No...

"An oscillating object" very easy question (I think) Sorry if this is a really stupid question but if it is then it'll be easy to answer . For the attached of example 15.1, I don't get how to do letter d. For v_max for instance, I see that sin(whateverIsInside) should equal -1 because -4pi*(-1)...

We have the equations available for computing the reflected and transmitted electric fields in the case when a plane wave is incident on a dielectric surface. Now what I wish to do is compute similar reflected and transmitted components of the electric field due to an oscillating electric...

Homework Statement A sphere is making small oscillations on a parabolic surface . The equation of the parabola is y= 0.5kx^2 . Find the time period of this small oscillation. Homework Equations accln. (c.o.m)= 5/7 g sinѲ tanѲ= Ѳ ( for small angles) sinѲ=Ѳ (for small angles) The...

Hello. Are there any chemical reactions of the Briggs-Rauscher variety that will continue to oscillate indefinitely with continued agitation? B-R fades out after a few minutes of agitation, and I am curious as to whether there are oscillating reactions that will continue to oscillate as long as...

Homework Statement A 120-cm-long, 3.0 g string oscillates in its n = 4 mode with a frequency of 150 Hz and a maximum amplitude of 5.5 mm. Wavelength is 0.6 m. What is the tension in the string? Homework Equations f = sqrt(TL/m)/2L The Attempt at a Solution 150 =...

can someone please help me fast? i am having trouble understanding http://www.colorado.edu/physics/2000/waves_particles/wpwaves5.html" ? here it is said that farther away from the vibrating charge the shape of the wave on the line of electric force changes? but is not the shape supposed to be...

Sorry if this is a dumb question, but I just read this in my physics textbook and I'm confused. It said that the frequency of a periodic wave is identical to the oscillating frequency of its source. I don't understand how this can always be true since the velocity of the wave is determined by...

Assume we have a plane of oscillating charges described by x=xoei(omega)t. The total field is given by E=- \frac{\etaq}{2\epsilonc}i\omegaxoei\omega(t-z/c) . (Can someone point me to a website where I can learn to type in these formulas and not not have them suck?) Ignore that weird looking x^o...

Homework Statement A 130 g ball attached to a spring with spring constant 3.0 N/m oscillates horizontally on a frictionless table. Its velocity is 17 cm/s when x = 4.2 cm Find the: -Amplitude of Oscillation -Max acceleration -Speed of the ball when x = 2.8cm Homework Equations T =...

Hi: Would somebody kindly check I have approached this problem correctly, please? Thank you. Homework Statement A 0.2kg mass is suspended from a light spring, producing an extension of 5.0cm. a) Calculate the force constant of the spring. The mass is now pulled down a further 2.0cm and...

I have been thinking about a scenario in which I might have a series LC circuit, but where one plate on the parallel-plate capacitor is attached to a spring. How would I model such a scenario, and how would I determine the ideal resonant frequency of the entire system? I have attempted two...

confirm my answers on Oscillating Springs?? Can anyone confirm or adjust my answers for problems 12 and 14? Also can someone help me start on problem 13.. Thanks guys I really appreciate the help Homework Statement 012 Find the speed of the block when it is 2.5 cm from the equilibrium...

Hello guys, Ok, so today in school my physics teacher was talking to us about waves and how they are formed etc. He told us that a transverse wave is formed by oscillating an electron and the 'electron oscillates perpendicular to the direction of movement'. So, here's the problem I can't get...

Homework Statement In an oscillating series RLC circuit, with a 8.77 Ω resistor and a 15.0 H inductor, find the time required for the maximum energy present in the capacitor during an oscillation to fall to 1/8 its initial value. Homework Equations I know that for an RLC Circuit...

Homework Statement A 7.0 kg mass is hung from the bottom end of a vertical spring fastened to the ceiling. The mass is set into veritcal oscillations with a period of 2.6s Find the spring constant. Homework Equations w = \sqrt{k/m} w = 2pi * f f = 1/T The Attempt at a Solution f =...

[b]1. The problem statement, all variables and given/known A mass m is connected between two identical springs (along a y-axis) with identical spring constants k. The equilibrium length of each spring is L, but they are stretched to twice this length when m is in equilibrium. By analyzing the...

A horizontal spring with stiffness 0.7 N/m has a relaxed length of 18 cm (0.18 m). A mass of 17 grams (0.017 kg) is attached and you stretch the spring to a total length of 21 cm (0.21 m). The mass is then released from rest. What is the speed of the mass at the moment when the spring returns to...

Homework Statement I've had some problems trying to work through this problem: Two springs of stiffness k1 and k2 are attached in succession to a mass m. What is the frequency of vibrations in terms of the spring stiffness k1 and k2 and the mass m? Homework Equations...

Homework Statement A block on a frictionless table is connected to two springs having spring constants k1 and k2. Show that the block's oscillation frequency is given by f = (f12 + f22).5 where f1 and f2 are the frequencies at which it would oscillate if attached to spring 1 or spring 2...

I’m interested in the natural phenomenon of diamagnetism. I understand the general concept behind the magnetic interactions, but I am curious about the results of the following experiment: What happens when one places a large oscillating electromagnet (possibly superconducting) directly above a...

Homework Statement Create one example of a function within the context of a real-world science application (i.e., physics, biology, chemistry, etc.) that contains an oscillating discontinuity, Homework Equations y=sin (1/x) The Attempt at a Solution I would like to use the...

Homework Statement Calculate the magnetic vector potential A at a point p located at a distance r from the axis of an oscillating dipole of length s. It is assumed that r\gg s and that the current is the same throughout s. Homework Equations r=\sqrt{(x^2+(z-z')^2)}, where x,z is the...

Does anyone know how to derive the result for an oscillating universe? R(t)= sqrt(3/lambda)sin(sqrt((3/lambda)ct) I would appreciate the help on this one

Homework Statement What is the maximum speed of a 1.90g particle that oscillates between x=2mm and x=8mm in the figure? Homework Equations ? The Attempt at a Solution I don't have the foggiest idea how to do this problem. If someone could point me in the right direction I'd...

Homework Statement Derive the period of a sphere oscillating in a hemispherical concave surface at small angles. Homework Equations Net Torque = I x alpha Delta E_m = 0 The Attempt at a Solution The thing is, tried using the conservation of mechanical energy to get an expression...

My question is a relatively short one. Simply put it is: "Will an electron oscillating in a vacuum lose energy?" My thought comes from does the presence of the moving charge create electromagnetic fields. I have no idea how you could get the charge to oscillate but perhaps in the neutral...

Ok, so I got a spring attached to a weight and positioned on the eqm point. So I displace it a little and it undergoes oscillation. At the lowest point, everything is Elastic Potential Energy since extension is maximum. At the eqm point, extension=0 so it is just a mixture of KE and GPE...

1. If anyone is able to cast an eye over my work and comment would be appreciated. Q. A mass attached to the lower end of a vertical spring causes the spring to extend by 25mm to its equilibrium position. The mass is then displaced a further 20mm and released. A trace vibration and time...

Homework Statement A simple pendulum has a period T. What is the period if the entire pendulum oscillates 0.59 g downwards? (give answer as a ratio of Tnew/T) Homework Equations T=2\pi(\sqrt{L/g} The Attempt at a Solution I'm so confused about this problem. I actually got the...

I need to find the frequency with which the gate will swing in Rad/s. I know the mass is 2kg, the moment of inertia about the hinges is 0.36kgm2 and that the torsional spring stiffness is 18.2Nm/rad. A person pushes the gate open to 90degrees and then it's released. Damping is negligible. If you...

I'm have some conceptual problems with electric fields and waves. When I think of electromagnetic waves I imagine field lines emanating from a charge that is oscillating, consequently causing the field lines to oscillate. In diagrams showing field lines, the electric field runs parallel with the...

Force on an oscillating mass? Homework Statement A 2.10 kg mass on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 6.00 N/m. The mass is displaced 3.09 m to the right from its equilibrium position and then released, which initiates simple...

I was wondering if the "Method of image charges" could be extended even partly or approximately to oscillating charges. I am not considering nearly-static problems, but really radiating problems. After all, the Poisson equation and the wave equation are rather close ! Therefore, I thought...

Homework Statement A uniform piece of wire is bent into an upside down V shape with angle \theta between two legs of length L. The wire is placed over a pivot. Show that the angular frequency of small-amplitude oscillations about the equilibrium is...

I'm interested in oscillating chemical reaction, as Belousov-Zhabotinsky one. Does it oscillate "forever" or it relax to a macroscopical stationary state? Ll.

So I have this line driver using an IR2110 to amplify a square function tuned for a specific frequency. Its used to cause oscillations in an LC circuit (pulsed at the same frequency, 1/root LC). Experimentally though I can't find that resonance frequency. As I go above the theoretical...

A 0.90 kg mass on a spring oscillates horizontally with little friction according to the following equation: x = 0.090cos(2.90t), where x is in meters and t in seconds. Find the maximum energy stored in the spring during an oscillation. X=a*cos (omega*t) omega =2pi*frequency = sqrot k/m...

A 57.0 kg circus performer oscillates up and down at the end of a long elastic rope at a rate of once every 7.20 s. The elastic rope obeys Hooke's Law. By how much is the rope extended beyond its unloaded length when the performer hangs at rest T=2pi* sqrt m/k kx=mg 7.2sec=2pi*sqrt 57/k...

Consider a mass hanging freely from a spring, oriented vertically downwards. We know that because the restoring force acting on the mass is directly proportional to the displacement of the mass from the equilibrium position, i.e. the extension of the spring (F=kx), the system exhibits simple...

Graphing potential & kinetic energy of an oscillating particle! 1. A particle oscillates back and forth in a frictionless bowl whose height is given by h(x) = 0.22x2 where h and x are meters. (a) Show graphically how the potential and kinetic energies of the particle vary with x. 2. I...

1. A particle oscillates back and forth in a frictionless bowl whose height is given by h(x) = 0.22x2 where h and x are meters. (a) Show graphically how the potential and kinetic energies of the particle vary with x. 2. I completed the (b) and (c) part of the problem, but I'm not sure as...

Was studying in class the effects of the E and B fields far from the source and what they looked like, but we failed to discover what happens near the source...Is this because there is no difference or did we just not cover the material

Homework Statement An elastic spring has modulus of elasticity \lambda and natural length l_{0}. The spring is on the slope of a hill with an angle \alpha to the horizontal such that one end of the spring is fixed at the foot of the hill and the other end can move freely along the slope. A...

Homework Statement The period of a mass m oscillating on a hookian spring of negligible mass. Homework Equations F = -kx The Attempt at a Solution I'm using x in place of ∆x for convienance. F = -kx dv/dt = -kx/m ∫vdv = -k/m∫xdx v^2 = C - k(x^2)/m: Placing the...

Homework Statement A 4.24 m long, 1.27 kg rope under a tension of 475 N oscillates with a frequency of 11.2 Hz. If the oscillation amplitude is 6.32 cm, how much energy is required to keep the rope oscillating for 6.25\,{\rm s?} Homework Equations The Attempt at a Solution I don't...

Homework Statement "A small ball with radius r and uniform density rolls without slipping near the bottom of a fixed cylinder of radius R. What is the frequency of small oscillations, assuming r<<R?" http://img89.imageshack.us/img89/8614/helpwu8.png Homework Equations F=ma...

Hello, In order to test-drive a data analysis program, I am looking for a function that generates sine waves with slowly oscillating frequency, i.e. the distance between the maxima should be slowly changing. I thought that I could simply achieve this by using a function of the form f(t)...

Homework Statement The position of a mass that is oscillating on a spring is given by x(t) = (14.5cm)cos[(14.0s-1)t]. What is the speed of the mass when t = 0.820 s? Homework Equations A= Amplitude W= Angular frequency x(t) = ACos(Wt) v(t) = -WASin(Wt) The Attempt at a...