Recent content by L0r3n20

Yes I did. I set the elastic force equal to the centripetal force.

Sure, here it is! And thank you for your pm! :)

TL;DR Summary: Are the k and the w linked? Yesterday I came across this problem: A mass is attached to a spring and the system rotates (one of the spring end is fixed) in an horizontal plane. Given the mass m, the value of k, the length of the spring l_0 and the angular velocity w, compute...

Thanks! That's exactly what I needed To understand!

I just read about Carnot theorem (the highest efficiency is the one of reversible machines and all reversible machines working between two given temperatures have the same efficiency). Then I found a problem where I have a reversible cycle made of an isochoric, adiabatic and isotherm. I report...

Thanks, I really understood! :)

Ok, i get it but I was wondering if a particle coming from infinite be captured by an attractive potential and bound into a closed orbit.

But what if it starts from infinity moving towards the Sun?

The module of the angular momentum can be expressed as L = m v b (being b the impact parameter) but what about the energy? I mean if the projectile is at an infinite distance it has only kinetic (therefore positive) energy, so I cannot find any bounded state. What am I missing?

I've been looking at the Kepler's problem, and it looks like your orbit (elliptic, parabolic or hyperbolic) are given in terms of energy and angular momentum. I was wondering: if I have a central attractive potential (such as the Sun) and a projectile starting from an infinite distance at a...

Do I have to transform every magnetic domain? Aren't they negligible?

Hi! I came out with a problem last night I wasn't able to solve: Let's assume we have a condensator with a uniform electric field E confined in its inside, lying on the z axes. Let's also assume we have a piece of a ferromagnetic object aligned with the condensator at time t = 0, on the y-axes...

Both of you got a point. Now you convinced me. Many many thanks.

I suppose that, being a 1D problem, you cannot admit a miss...

Ok thanks Perok that's very illuminating! :D In other words IF there is a collision THEN we can assume momentum is transferred, ELSE we have a miss, right?