Recent content by great_sushi

Ok thanks for the feedback. I will send an email

Galactic Modelling - Bulge formation The bulges at the centres of galaxies often host supermassive black holes (SMBHs), with masses as large as 10^9 M sun. The masses of SMBHs correlate with properties of bulges. Therefore it is important to understand how bulges form in order to understand...

Apologies... I'm on my man period. Those on this particular question were fine I was talking about posters on this forum in general.

Thanks steveL27 you were very helpful. The rest of you on this forum are extremely condescending and unhelpful. If you don't know, don't answer.. simple. Of course it's going to be of a mathematical form

Hi, I have a potential job opportunity where I will be given horse racing data i.e. average speed, max speed, weight of jockey etc etc I have been asked to create a formula that finds the most probable horse out of these statistics. For one.. Is it even possible to get to a high...

Ok thanks a lot! This info is really helpful I will research into what you have mentioned. Just out of curiosity could you have a piezo material attached to a circuit with a capacitor then once the capacitor is charged the circuit switches to another with a specific resonant frequency? I am...

I am starting my 3rd year in September and I've decided to start thinking about research topics early. I'm quite interested in piezoelectricity along with it's discovered and perhaps undiscovered applications. This is my first idea; I have watched a lot of nature programs and I have seen that...

Can you tell me where the cubic term comes from? I know that it an odd power series but why? Thanks

Oh great! I was wondering why my signs were the wrong way round. I didnt realize it was a negative integral. Thank you very much, you have been extremely helpful :)

Ahhh I see that makes sense. So the integral of -kx + βx^3 = -1/2kx^2 + 1/4βx^4 = V(x) and in this case, that gives a double well potential.

Oh thank you very much! Apologies for asking the question twice, i didn't know if it was advanced or introductory.. So if I integrate the duffing equation with respect to x will I get the potential energy? Because the work = force* distance and so the force = work / distance.

OK so I'm wrong. Can you point me in the right direction then?

Say I have a mass m on a non linear spring k with some damping b. I start with the restoring force of the spring F=-kx+x^3... the x^3 is the non linearity. Set that equal to Newtons second law F=mx'' = -kx+x^3 Add in the damping which is dependent of velocity bx' ......mx'' = -kx +...

Well, if the table was frictionless and if you hit the ball dead center it would never rotate... So the frictional force will be the force that causes the rotation... The sliding will occur if something opposes the frictional force... ie the mass moment of inertia of the ball. If the...

Say I have a mass m on a non linear spring k with some damping b. I start with the restoring force of the spring F=-kx+x^3... the x^3 is the non linearity. Set that equal to Newtons second law F=mx'' = -kx+x^3 Add in the damping which is dependent of velocity bx' ......mx'' = -kx +...