Recent content by diemilio

I agree. I think the way I am postulating the problem is incorrect. The energy in the system will just fluctuate back-and-forth between the mass and the source, so no power would be delivered. After extensive searching, I realized that the average power cannot be calculated by using the RMS of...

Sorry, I didn't want to be too specific because I thought I simple diagram would be enough, but I guess the diagram can be very ambiguous. I'm dealing with a component (of mass m) submerged in a fluid, which is used for something known as ultrasonic cleaning. The component has an accelerometer...

Thanks Russ. This can be viewed as a wave power station. As a matter of fact, in the problem I am dealing with, the mass is suspended in a fluid, and there is this wave generator sucking and pushing the mass back and forth in an oscillatory manner (viscosity is very small, so losses can be...

It is not that the continuos power supply is needed; it is just there, delivering power continuously. Anyway, it seems that my understanding of the problem I am dealing with is all wrong. Thanks though.

So you're basically saying the average delivered power by the source is zero; correct? It seems counter-intuitive to me There is no loss in this system, so how can the energy be dissipated? There is only a mass; there is no friction, no fluid damping, no thermo-elasticity, etc. There is not...

To have negative power wouldn't the mass have to be sourcing energy back into the power source? What is wrong with my calculation?

If I am correct, then I am getting: Pavg = amax2*m/(2*√2*ω0) It would be great if someone could let me know if this is correct. Thanks again!

I don't think so. No power, no acceleration. I think it is something like this, but I am not 100% sure: P(t) = F(t) * v(t), where F(t) is the force and v(t) is the velocity F(t) = m*amax*sin(ω0*t) v(t) = ∫ amax*sin(ω0*t) = - amax/ω0*cos(ω0*t) P(t) = -m*amax2/ω0*sin(ω0*t)*cos(ω0*t) P(t) =...

Hello, I have a system of mass m that has an accelerometer strapped to it. The accelerometer is measuring a sinusoidal acceleration with peak amplitude of amax: https://www.dropbox.com/s/y49pcrhqbrzk27t/Accel_System.png How can I calculate the average power (in Watts) that is being delivered...

Thanks Bill, I will check out the reference. I have "OK" math skills, so I think I should be fine. If you happen to know of a paper where they show the experimental results I am looking for I would appreciate it. Thanks again.

So what you're saying is that the measurement itself in a way "corrupts" the original experiment so the results of the original test change, correct? That I can understand.

I see. Makes sense. So this means that there is no way to actually do this because of what I just posted related to Feynman's quote; correct?

I am wondering if what I am looking for is something that cannot be done. There's a quoute in that paper from Feynman that says: "you should not try to set up [the experiment]” because “the apparatus would have to be made on an impossibly small scale to show the effects we are interested in.”...

Hi Nugatory, Thank you very much; this is a very good paper. However, it does not show what I want to see. It seems the figures are for either an double-slit interference pattern or a probability distribution for single slits. What I would really want to see is this so-called "collapsing" of...

OK, understood. What if I put detectors in the slits as bhobba mentioned? what is it about doing that that's cause the pattern to disappear? I'm a very skeptical person, and I have seen this concept being mentioned everywhere, but never seen an actual experiment of it. I tried looking it up in...