Recent content by BiGyElLoWhAt

For context, I am joining a project that aims to measure lensing during the solar eclipse in about 6 weeks. What they are currently attempting to do currently is come up with a non-relativistic prediction. I've read that allegedly it's off by a factor of 2. So far there are 4 possible ways to...

I think this is the appropriate subforum. I'm curious as to what approaches have been taken. I know this prediction isn't correct. I can think of at least a couple ways that I could go about this. They may or may not give the same prediction. One approach would be to simply use kinematics, and...

Adding f isn't the way to go about it. However, I think most students will be inclined to try that first. I want this to have less "hand-holding" rather than more. When you have ##1/{d_o-f}##, you have a general shape of the graph, and the correct asymptote at ##d_o = f##, however the incorrect...

I think I have resolved the issue. I looked closer at my formulae in excel. For the "add f" function, I went through and cleaned it up to get ##\frac{1+fd_o - f^2}{d_o-f}##. However, when plugging it into excel, I typed ##+f^2##. Doing so and adding f again (then multiplying by 1/2) gives...

There are 2 parts to the lab (2 different sessions), A) they will adjust a lens and screen to take data points. B) is intended to be both a conceptual and analytical analysis. Most students will have never linearized data before, nor seen data be linearized. This will be the biggest/most in...

Hi, I'm trying to come up with a section of an optics based physics lab designed for 2nd year Calc-based college students. Calc 2 is a co-req. There are 2 labs that are intimately linked together. The first effectively revolves around taking ##d_i(d_o)## data from a lens, source and screen...

I am working on a project in C# that will be using arrays of various length that need to be determined at runtime. I am attempting to write a small personal library of functions that act on arrays of various types. Right now, I am trying to add an empty element to the end of an array, of...

Pretty much all audio equipment comes down to filters and modulators. I'm not sure what you mean by isolating inputs, outputs, etc. I think a lot of the noise would be due to the fact that wires act like antennas. There are different types of noise: 60hz (comes from the fact that our wall...

It doesn't seem as though it's necessary according to https://www.scribbr.com/statistics/chi-square-tests/ (also 10 doesn't normalize to .10 unless the total is 100) They define: ##\chi^2 = \Sigma \frac{(O-E)^2}{E}## which isn't quite a normalization. O is observed E is expected. You also need...

Desired output similar to image, but without the objects and with better wave interference: I tried plugging the following into wolfram (I specifically want the values to be adjustable): plot z= H*e^(-m*sqrt((x-a)^2+(y-b)^2))*sin(k*(x-a)+k*(y-b) -w*t) +...

I think he's asking whether or not it's possible, meaning whether it's necessary to utilize that fact or not. I'm not sure that it is, now that I look at it more closely. Without actually solving it, I think you are going to end up with more unknowns than you have equations for. As for...

Perhaps something like this. I'm not sure if this would be considered a "snap" circuit, but what is talked about in this video by Steve Mould seems like it might be useful for younger ages.

It would probably have something to do with electrostatics. Effectively what you're making is a capacitor, with a plastic foil for the dielectric. I'm not sure off the top of my head what it would be, but you could probably treat each foil sheet as having a constant charge density ##\rho## (one...

I don't think your setup is quite right. Just looking at your first equation, you've set the tensions upward equal to gravity downward. This equation says they're equal, and the mass shouldn't move. You need an equation that gives it freedom to move. It should probably have an ##a## in it...

Check the sign of the 2nd derivative on each interval if you aren't sure.