Recent content by Kolika28

Thank you so much, that was a good explanation! 🥰

Thank you so much! I never thought about multiplying row 2 by k - 10. That gives a lot of sense and make the matrix look a bit more "tidier". Appreciate your help! ♥

So ##k=-0.5## and ##k=10## can still be a valid solution for k even though they make the denominator zero? And if ##k=-5## and ##k=3## gives no solution and infinite many solutions, does that mean that every other value will give a unique solution? Thank you so much for your reply by the way 🥰

The first thing I do is making the argumented matrix: Then I try to rearrange to make the row echelon form. But maybe that's what confusses me the most. I have tried different ways of doing it, for example changing the order of the equations. I always end up with ##k+number## expression in...

Thank you for your help! :smile:

Ohh, I see now? Can it be that I forgot a minus sign in the answer?

Summary:: Two speakers A and B are at rest, and a listener L stays on the line that connects the two speakers (see picture). The speakers have almost the same frequency. Assume that the speed of sound in air is 340 m/s. When the listener is at rest, he/she hears beats with frequency 6 Hz. The...

Ups, I'm sorry for the confusion. I forgot to mention something. In the experiment we also studied what would happen if we stirred (added turbulence) to the rotating water before adding dye. We then saw these vertical curtain wrapping around each other, still some sort of 2D motion. From the top...

I forgot to ask last time, but why do we add turbulence? Is it a weather phenomenon we are trying to demonstrate?

Ohh, thank you! Really appreciate your help!

It's called DIYnamics. Here is a link to a youtube video

Thank you for a great answer! :smile:

<Mentor moved to Physics> My teacher talks about turbulence (2D and 3D), but I don't quite understand this. How is the turbulence different in the two buckets, and why does my teacher talk about turbulence but not diffusion? Is not diffusion the reason why the dye spreads in the water? I have...

Ohh, I see, that make sense. Thank you so much both of you! :smile:

So I have always been thinking that equilibrium means that an object is not moving or having constant acceleration. On a webside they said: " A rigid body is in equilibrium when it is not undergoing a change in rotational or translational motion. " To me it sounds like the object then must not...