Have you considered the possibility of a more vocational engineering course?
For example - I know someone who did some sort of vocational qualification equivalent to A-levels in aeronaughtical engineering
(I think it was this course, will have to verify with him...
Thanks for the reply mal4mac, but I don't think there is actually any tension the cartoon you describe, there might be a system of applied forces which sum to zero, but no tension arises (think of tension as an elastic property?).
Anyway, I think the key thing here is OP is asking why the waves...
What do you mean by the square brackets on the LHS? I.e., does it mean A is a function of x or is it an unnecessary bracket?
Are you asking does the following hold true
\left( \frac{\partial}{\partial x} \left( Ax \right) \right) Ax = \frac{\partial}{\partial x} \left( (Ax)^{2} \right)...
I just wanted to pick up on and query this, specifically the local tension increases...
If we had two equal but opposite propagating pulses on an elastic string that encounter each other, then at the instant where they completely cancel any and all transverse displacement then I don't see how...