# Recent content by acedeno

1. ### Magnetic Force Experienced by a Loop of Wire

How about. ds x B = (wkydx - 2khx^2/w^2)k should i sub in my equation for y in for y?
2. ### Magnetic Force Experienced by a Loop of Wire

hmm actually, ds = dxi + dyj dy=-2hx/w2 * dx dx/dy=w2/-2hx dx= -w2/2hx *dy therefore, ds = (-w2/2hx*dy)i + (-2hx/w2*dx)j
3. ### Magnetic Force Experienced by a Loop of Wire

I wanna say di/dj = ds and so: y=h-hx2/w2 di/dj = dy/dx = -2hx/w2
4. ### Magnetic Force Experienced by a Loop of Wire

I take the derivative of y with respect to x and voila?!
5. ### Magnetic Force Experienced by a Loop of Wire

I'm not sure, I feel as if I need to express ds in such a way that it takes into account both the change in y and the change in x. Possibly a ratio?
6. ### Magnetic Force Experienced by a Loop of Wire

hmm.. y=h(1-x2/w2) ??
7. ### Magnetic Force Experienced by a Loop of Wire

This is what led me to believe that it was y=h-x2. Do you want me to say y=-ax2+h ? or am I completely approaching this incorrectly?

y=x2
9. ### Magnetic Force Experienced by a Loop of Wire

Ouf, nevermind, x=w and y=h-w2 make sense to me now. I reviewed a little bit of my highschool quadratic forms! :P
10. ### Magnetic Force Experienced by a Loop of Wire

well in that case just y=h-w^2 but that doesn't make much sense to me, I was assuming something along the lines: y=-a(w+x)(w-x) ??
11. ### Magnetic Force Experienced by a Loop of Wire

Yeah, isn't that what I have? y=h-x2
12. ### Magnetic Force Experienced by a Loop of Wire

Homework Statement The problem is shown in the link below: http://postimage.org/image/do2b7xz0b/ [Broken] Homework Equations Biot-Savart Law's and dF=Idl x B The Attempt at a Solution My attempt is really just a mess. I essentially want to break it up into 2 segments. (1) Being...
13. ### E-field of a molecule on a point

Homework Statement http://postimage.org/image/cky823nof/ [Broken] Homework Equations E=kq/r^2 The Attempt at a Solution I figured I would just find the electric field produced at point * by each individual charge and then add them. For example if I were to set E1 to be the top molecule...
14. ### * *Damped Harmonic Motion (Differential Equations)

*URGENT*Damped Harmonic Motion (Differential Equations) A damped harmonic oscillator satisfies the following equation: d2x/dt2 = − 5x − 2dx/dt (a) By assuming a trial function of the form x = A e^qt, determine the solution of this equation "from scratch." Express your final answer as a real...
15. ### Charged Shape Described by a Function - Urgent

I'm sorry but I'm really not following. I guess I could find mass by using m=(density)(volume) but I'm still uncertain on how to express the volume of this object.