Oscillation Definition and 740 Threads

Oscillation Problem. Advice need please :) An object of unknown mass is hung on the end of an unstretched spring and is released from rest. If the object falls 4.27 cm before first coming to rest, find the period of the motion. All i can figure out is that the maximum amplitude is a given...

I have encountered a question regarding a plank shifting in simple harmonic motion on top of two rotating wheels, rotating in exact opposite directions with the same angular velocities and the question requires me to determine the frequency of oscillation, which has got me stuck. I proved that...

A wrecking ball is suspended from a crane by a cable that is 30 m long. How much time is required for such a simple pendulum to make one complete oscillation? no picture was given to me Ok this is a pendulum problem and its asking for time which is the period. So I think that this formula...

Sorry that I had to use an image file, I was having a lot of trouble using the Latex system. http://www.flamingice.5gigs.com/Question.gif Ok... We know the amplitude of the oscillations, and the force per person, so all we need to do is find Fmax, by finding other values and substituting...

A mass m is attached to a massless rod of length L to make a pendulum. In addition, when the rod is vertical, two relaxed springs with constants k1 and k2 are attached on either side of the mass to walls. What is the period of oscillation. I started by writing the potential energy as a...

If a mass (m) at the end of a length (L) on a pendulum starts at an angle of θ from the vertical, what is the minimum inital velocity v0 it must have to just barely make it over the top and not oscillate? This is what I did: \Delta K=mgh\implies v_0=\sqrt{v^2-2gh} but at the top, v is...

Hi, i'm trying to do this problem: ------------------------------------------------------------------- A tympani drum has a billiard ball of mass m resting in the middle. The billiard ball is displaced only vertically, very slightly from its equilibrium, and will oscillate vertically...

solving perpendicular oscillation problems-- lissajous Hi all. Ok, I am not getting how we're to solve perpendicular oscillatory systems. How do the variances in frequency, and phase play into the drawing/solving of these systems? Oh, and this is not a trig class I'm doing. It's an...

Hi, I just want to clarify something. If there is a particle attached to a spring, in which it's maximum velocity is at t=0 towards THE LEFT. Does that mean that when x(t)= Acos(wt+phi) then v(t)= -wAsin(wt+phi) therefore v(0)=-wAsin(phi) = - 20 and Vmax= wa= -20 or positive 20. When it...

A mass m is suspended vertically by a spring of force constant k. Derive the relation \omega \geq \sqrt{\frac{k}{m}} where \omega is the (angular) frequency of oscillation. The only way I know to do this is to solve the differential equation \ddot{y} + \frac{k}{m}y = 0 using y = A\cos(\omega t +...

One has to provide an input to start an oscillation, but that input can be removed and the oscillation will continue. So when we talk about space time, if the original, "input", is no longer present we are looking at an effect and have to guess the cause. So could we work backwards...

For lunch you and your friends decide to stop at the nearest deli and have a sandwich made fresh for you with 0.300 kg of Italian ham. The slices of ham are weighed on a plate of mass 0.400 kg placed atop a vertical spring of negligible mass and force constant of 200 N/m. The slices of ham are...

Hi I'm attempting this question and I'm wondering if this is the correct way of going about it or if I'm completely off track: For lunch you and your friends decide to stop at the nearest deli and have a sandwich made fresh for you with 0.300 kg of Italian ham. The slices of ham are weighed on...

i am going to write a report about damped oscillation . as i planned , i will discuss the amplitude decays exponentially with time , application . but that are too little to talk to then what things need to be further discuss? and one question if i use one small card and bid card to damp...

A hoop of radius 0.130 m and mass 0.420 kg is suspended by a point on its perimeter as shown in the figure. If the hoop is allowed to oscillate side to side as a pendulum, what is the period of small oscillations? T = 2pi (mgl/I)^.5 I assume that l = r, since center of mass is in the...

A 55.0 kg circus performer oscillates up and down at the end of a long elastic rope at a rate of once every 8.40 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? I drew a free body diagram and summed up the...

Hi, I'm Steve, the new guy. After a long literature search, I have been unable to find any reference to experimental confirmation of neutrinos of any type oscillating in a vacuum. All of the many models under discussion seem to assume that they oscillate, but nowhere have I been able to find a...

I am confused! Forced oscillation is the one which a periodic force is imposed on a oscillating system. For a damped oscillator, the damping force is proportional to velocity which varies periodically. Does it mean that the damping force is a periodic force and the damped oscillation is a...

'A block is attached to a vertical spring whose spring constant is 150 N/m. It is droped from rest with the spring at its natural length, and the block has a speed of 75.0 cm after droping a distance of 8 cm. Calculate the mass of the block.' Now i know k = 150. v = 0.75 and x = 0.08. I also...

Three Interconnected Questions: 1. When an atom is excited by a visible photon (KE=1 eV), does the probability (radial) density increase for the valence electrons or not? 2. If the probability density has increased outward, then what normally causes the excited state to begin the process...

consider a Newtons cradle consisting of decreasing masses from the left to the right. if the left most ball is displaced and collides with the others, we end up with a fan like picture whereby the lightest ball, furthest to the right, has the greatest velocity, and the largest ball has the least...

If an moving electric charge produces light waves what is it is oscillating?

Im not sure exactly what to do with a part of this problem A 5 kg block is fastened to a vertical spring that has a spring constant of 1000 Newtons per meter. A 3 kg block rests on top of the 5 kg block. The blocks are pushed down and released so that they oscillate. Determine the...

A massless spring hangs from the ceiling with a small object attached to its lower end. The object is initially held at rest in a position yi such that the spring is at its rest length. The object is then released from yi and oscillates up and down, with its lowest position being 10 cm below...

long report on timing oscillation. help! i'd like to ask how do we write a long report on an experiment ( timing oscillation) pls help! the links of this experiment handout: http://hk.geocities.com/touchthetrace/time1.jpg http://hk.geocities.com/touchthetrace/time2.jpg i'd like to ask...

I think I'm getting really confused by sign changes... can someone help me with this? Spring with spring constat K stands vertically, and mass m is placed on top. Mass is gradually lowered to its euqilirium position. With the spring held at this compression length, the system is rotated to...

A long, straight, and massless rod pivots about one end in a vertical plane. In configuration I, two small identical masses are attached to the free end; in configuration II, one mass is moved to the center of the rod. What is the ratio of the frequency of small oscillations of configuration II...

Ok so this is propably borderline college :) But it is the first college course I'm in so don't bash me if this is too basic for this forum. (btw hi I'm new) Well the question in the book is as follows: "A mass m is attatched to the end of a helical spring (spring constant k) which hangs...

I need to find the initial conditions such than an underdamped harmonic oscillator will immediately begin steady-state motion under the time dependent force F = m f cosωt. For the underdamped case: x(t) = ae^{-\gamma t}cos(\Omega t+\alpha)+\frac{f}{r}cos(\omega t-\theta) and if it matter...

"An object is moving along the x-axis in simple harmonic motion. It starts from its equilibrium position which is at the origin at t=0 and is moving to the right. The amplitude of its motion is 2 m and its frequency is 3 hz. (1) Determine the expression for the objects displacement. (2) Where is...

In my notes, there are two sentences make me feel strange... As we know, the pendulum whose length equals to that of the friver pendulum, its natural frequency of oscillation if the same of the frequency of the driving one. This is known as resonance oscillation. However, somewhere I found...

This question is quite interesting: A uniform meter stick of mass M is pivoted on a hinge at one end and held horizontal by a spring with spring constant k attached at the other end. If the stick oscillates up and down slightly, what is it's frequency? The length of the stick is one meter...

I've been staring at this problem for a loonnng time and i just can't figure it out:(.. i would appreciate it if someone could help me...thx! :) A large block with mass 26 kg executes horizontal simple harmonic motion as it slides across a frictionless surface with a frequency 1:9 Hz ...

Consider a simple harmonic oscillator. Calculate the time averages of the kinetic and potential energies over one cycle, and show that these quantities are equal. Next, calculate the space averages of the kinetic and potential energies. I'm completely confused about these terms. Time...

Hi, these two questions have been boggling me for a week.. if anyone can I help I'd be very appreciative. The first one is.. A cylindrical rod of length 1.5 m and radius 0.02 m is insulated to prevent heat loss through its curved surface. One end is attached to a thermal reservoir at 573...

I'm looking at this question: 'If we assume as oscillation of form y = Aexp(iwt) what is the operator w? What then is the operator for frequency f?' I have no idea what is ment by operator. I've tried looking it up in books and the net, but the explinations I am finding just aint helping...

Simple Harmonic Oscillation Hello, I am new here and wish I had found this forum earlier in the semester. Here is the situation: A block (mass m=0.75 kg) rests on a horizontal surface (frictionless), attached to a horizontal spring (k=235 N/m). At time t=0, the block is located at the...

i have looked on the net but i can not find a site that explains the MECHANICS of gravity wave production, as i understand it is an oscillation in space time, if gravity is warped space time how can the destruction of a massive body make it oscilate, it implies some sort of bounce, but how...

I have an idea that I've tried to express on this forum before but without success. There's a lot of reasoning behind the idea so it won't do no good just blurting it out. I want to lead you and see if you reach the same conclusion... So here goes... First question... In classical physics...

Hello, I have two test questions that I missed AT school so i wrote them down. I wanted to know the correct answers as well as a short description of how they came up with that. 1) a simple pendulum consists of a mass attached to a weightless string L. For this system when undergoing small...