Recent content by AHashemi

Hi I'm thinking about making an instrument to show the force on a wire carrying electric current for students in lab. A normal wire which levitates from ground after it has current flowing in it. We have the following equations F = ILBsin(a) W = ALg 'A' being the mass of unit length of the...

Thanks! Looks like just what I want. Things like not having to code everything, faster calculation, easier plotting, higher precision calculation. Whatever pro computational physicists do for a better result. In other words I don't want to start from inventing wheel and fire. :grin:

Hi I'm studying 2nd year for a bachelor's degree in physics and I'm interested in programming (Beginner C++ programmer). I have already done simulations like harmonic motions, Ising model etc but I know this can go further and I need help with that. I use Ubuntu for programming with c++. (GCC...

mu is always positive and smaller than 1.

I showed the equation to a physics professor and he said nearly the same thing that you can't always have the requested parameter in one side of the equation. Thanks again everyone.

By getting theta out I mean I want theta on one side of the equation and the rest in the other side. like this: θ = something (not theta itself) so I can give value of mu and find theta whenever.

the problem is mu and theta are positive numbers and if I move e to on side of the equation It would be negative and we can't apply natural logarithm. right?

1,2. I've already given the equation. 3. this equation was half a page long and this was the shortest form of it I could get to. and I have no Idea how to solve it. I think it's completely right to ask for help where I'm sure I can't do anything more. I'm also curious how can you make things...

No it's not. I'm trying to solve a problem without removing friction. But here's the case: I'm studying elementary physics (classical mechanics) currently but the math part of this problem is way advanced than my knowledge so I need help.

thanks but this just made things harder for me. now I have to deal with i too. this equation is the result of a classical mechanic problem where I need to find theta. and mu is a positive number. can you give me the complete answer?

Hi I need to get θ out of this equation. I have no Idea how. please help. Note: mu is a constant number. -6\mu sin\theta - 3cos\theta + 2(((e^2)^\theta)^\mu)*(1-2\mu^2)=0

Yes. Centripetal force and centrifugal inertial force have opposite directions. When I said it should be towards center of ellipse I was talking about centripetal force.

r is distance from center of rotation. in circular motions r is constant but here it changes by time. is center of a small curve center of a larger circle which that curve is departed from?

Homework Statement an object is sliding on an elliptical hill shown in picture. what is the direction of (inertial) centrifugal force at each moment? Homework Equations F=mv^2/r The Attempt at a Solution I think it should be towards the center of ellipse and value of r in the formula varies...

But I need to remove the time parameter here and describe F as a function of y (the length of chain not lying on the table) I've got a bit confused. need more explanation.