Recent content by Beam me down

I was complaining when I did not realize I was working in mod 2. I only saw it was mod 2 after re-reading the question again and again.

The question was right, elsewhere it mentioned that the work was in mod2.

Note: I don't know LaTeX that well, hence I have done my working in the images. Homework Statement Show that the rows of G are a basis for the null space of H (part of this question will be to show the independence explicitly)...

This is rolling without slipping. So at the point of contact between the ball and plane is the ball moving or stationary?

I'm currently studying from https://www.amazon.com/dp/0534493394/?tag=pfamazon01-20. I'm sure you can get it cheaper than that though, I bought mine for $120 Australian (<$US100) brand new. I've found it to be good at explaining QM in atomic/nuclear structures.

Take some number K, find the possible n's that satisfy 2^n>K. Ie. solve for n.

You have to do the integration from the definition of moment of inertia. I\ =\ \int dm\ r^2\ Some tips: dm can be expressed in terms of linear density dm\ = \rho d\theta, with theta in play due to it being easier in this case to use polar co-ordinates.

Well the curriculum does not require it, at all. I think introducing Minkowski S/T diagrams would be more confusion when essentially all the students need to know is there are differences in the order of events in difference frames. However quantifying that, even diagrammatically is not...

Thanks for all of this. I'll run through this exactly over the next couple of weeks. I'll let you know how it all goes. Cheers mate, Matthew.

It comes with Knight's "Physics: for scientists and engineers", a 1st year uni book. I used it last year, it was OK, although most of the questions were formulaic. There was one or two questions that were conceptually difficult. It certainly made it far quicker to get feedback on assignments.

I am tutoring a couple of students in high school physics and have for the first time come across the problem of how to teach high school students the basic concepts of relativity. I explained the MM experiment and they found that comparatively easy, but upon getting to time dilation they...

I have completed an experiment to measure the decay rate of an isotope, and I am trying to estimate uncertainties. The half life is 40 seconds, with decays counted over a 15 second period (with many of these 10 second periods for a total of 6 minutes of recordings) However in more detailed...

I recently completed an experiment for university level physics and am currently doing the analysis of the data. This data has been transformed to fit a linear model and it fits this very well, with the line of best fit lying within all error bars. I need to provide estimate of the gradient...

I especially like how they haven't published any details, but who knows maybe a small company has somehow broken essentially the most important and fundamental law of physics. Good on em if they have... but its like a googolplex to one chance.

You want to start the system of the two blocks moving. The normal force for the two blocks is proportional to the sum of their masses. The acceleration of the two blocks also needs to consider both their masses. When you consider the maximum force before the top block moves relative to the...