Recent content by anonymous24

Thank you for your response, it does clear up the confusion. Would undamped oscillation also return to steady state over time?

I really appreciate the effort you put into your response but solving differential equations like this may be a bit out of my reach as I'm still in high school. Is there an intuitive way to approach this?

Thank you for your reply but sorry I don't understand what do you mean by circuit. I meant in a simple harmonic system. Perhaps I should edit my post.

Thank you, I was just a bit confused but I am clear now. :)

Hello, We learned in class that for a simple harmonic damped forced oscillation, the amplitude decreased exponentially over time. And for a completely undamped situation, the amplitude grows uncontrollably when the driver frequency matches the natural frequency of the driven. However, I wonder...

Thank you for your response. I do understand the first part, but I'm not sure what do you mean by "thermal motion", could you please elaborate on it. thank you!

Hello, I am not sure whether it is the right place to post this but I am a bit confused about the bonding in chemistry and the binding energy in physics. From what I have read, in a nuclear fusion reaction, the released energy due to mass defect is converted to the kinetic energy of the product...

Thanks for the reply, so do you mean a small change in x and a small chunk of x is the samething? that's the thing the confuses me.

Thanks for the reply, but why is that? Could you also please give an example where it won't be the same? thank you

Hello, I am slightly confused about the actual meaning of dx. Because I read in a physics textbook, they say something along this line: "We divide this region into spherical shells of radius r, surface area 4pr 2, thickness dr, and volume dV = 4pr^2 dr." I don't understand how can we represent...

why would the centre of mass of the damper+the building change if we just move the damper, aren't they the internal force of the same system

Hello, When I was in lesson today, our physics teacher mentioned a device called tuned mass dampers in Taipei 101 to reduced the effect of earthquakes. What he said is that when the building shifts to the right, and there will be a mechanism for the big ball (the damper) to shift to the left to...

Thank you so much, it's really clear to me now.

Thank you so much, that clears up a lot of my confusion. I just have one last question that does it mean the recession speed against distance from our Earth diagram (gradient = Ho) changes over time? like it will look really different a thousand years in the future? Thank you. Is it also why...

Thank you for your reply. However, there is one point I'm not so sure about. You mentioned we assume the velocity with respect to us of a given galaxy is constant with respect to time, does it imply that it is moving away from us with constant velocity since the big bang? If so, how does this...