Are you saying that practically speaking we can't know F(t) or T(t)?
Can you elaborate on the relativistic implications?
I am very determined to fully understand this concept. Thank you kindly.
Hi all,
I am reading a book on spacecraft engineering in the section about trajectory dynamics. They define linear and angular momentum as:
##I = \int_{0}^{\tau}{F}dt## (Linear Momentum)
##L = \int_{0}^{\tau}{T}dt## (Angular Momentum)
But they (and so many other sources) always mention the...
Sorry I'm not familiar with your method. I don't understand why you substitute "t+δt" for t. What approach are you using here? Could you elaborate or direct me to some further reading?
Cheers :)
When sketching a root locus of a simple closed loop negative feedback system (with positive gain K).... if you have more poles than zeros, we know that they will tend towards infinity along some asymptotes. How do you know which pole will travel along which asymptote?
For example in the...
Hi,
I want to verify that the form of a particular solution satisfies the following ODE:
v' + (b/m)v = u/m
with
vpart= ∫e-(b/m)(t-r) (u(r)/m) dr
where the limits are from 0 to t
So I tried to differentiate v with respect to t, in order to substitute it back into the equation. But, how do...
Conceptually, what does it actually mean to take the 'moments about a point' on a body, even if that point is not the center of rotation of the body (center of mass say). For example, we could take the moments about a point not even 'in' the body, so what does this value represent?
I am...
So I have the following shape for which I want to calculate the inertia matrix. Basically I just want to know what limits of integration I should use if I am using spherical coordinates. Assume the convention that phi is the angle from x to y in the xy plane and theta is from z to the xy plane...
1. Homework Statement
So, I have found a general solution to a system of linear first order ODE's and this is what I got:
X = c1v1e^(-1+2i)t + c2v2e^(-1-2i)t
where v1 = [-1+2i, 5], v2=[-1-2i,5]. The question is, how do I now change this solution into its real equivalent? i.e. I dont want any...
1. Homework Statement
A liter of air, initially at room temperature and atmospheric pressure, is heated at constant pressure until it doubles in volume. Calculate the increase in its entropy during this process.
Is there a way to calculate this using the thermodynamic identity (ie. without...
Could someone please elaborate on this and show exactly how we come up with the coefficients being the relative probabilities..? Just keep it 1dimensional.Thank you!
Re: "Scattering" by a potential
Ok, but how physically does this make sense? How does the fact it goes past a potential change its path? I suppose I still don't fully understand what potential wells represent physically.