Recent content by ribod

hello, i hope I'm finding the right forum for my question. The question is quite simple: how to set a mathematical model for estimating the lowest possible time a world record in a computer game track, and with this model also being able to predict world records in the future. I don't...

zz, I'm not sure if you wanted me to read about whether light is a wave or particle. i did it at least, and yes it's satisfying that there is such a non contradictory theory. however that is not what my question is about. in pop science they usually keep bringing up the same examples, with...

hi! Every time i stumble upon quantum physics I get to the same example, where the subatomic particles (photons i suppose) behave like particles in a particle experiment, and waves in a wave experiment. Then the conclusion is that the particle becomes what the observer measures. I'm just...

Hi! I have been studying the relativity theory a few times in different popular media, and I have come to find if not logical errors, at least lacking information to make this theory complete. The problem is that there is a mixup between light as we see it and light as photons. Taking the...

this is the movement on the edge, not meaning it will never slide off. i only wanted this equation, since the movement after that is much easier to calculate.

my reasoning, which can be illustrated easily visually by using a cd disc rolling of the table: the corner is like a point, and does not affect the geometry of the movement. since the cd is round however, the movement will be the same as if a point is rolling off a sphere. to apply the force...

yes i can make a function of position, F(y), or F(x), but i have no idea how you get from -kx=m*a to x(t)=A cos(wt) + B sin (wt) (let alone where did A and B come from).

crosson as I understand it you showed that s''=v'=a ? this doesn't make a function of time. Can anyone solve the problem? It might be trickier than you think if you don't really solve it.

I have this function: y=x/(x-1/x) and I want to find out the average value of y, between two values of x. Is there some mathematical way to do this?

Crosson I know what a derivate is. If it would say dx/dt i would have known it was the derivate. However I don't remember any use of d squared. It was some years ago I studied this. I found your formula online however, and I want to make sure if there is no algebraical solution to my problem...

Ok could you explain it more detailed please? First of all what is d? Then how do you get ma=d^2X(t)/(dt^2)?

maybe this will be useful? http://www2.mech.kth.se/~hanno/Bodies.pdf

I'm requesting help for a physics problem I have made up. Let's say we put a ball on the edge of a table, with the center of the ball being a teeny weeny bit outside the edge of the table. In other words, if we have a coordinate system, the edge of the table is at 0,0, the center of the ball...