# Recent content by cheater1

1. ### Electric field E= dV/dS

That the thing I have no idea. All we did was connect a battery and draw on a Electric field mapper. have no idea what the lines mean.
2. ### Electric field E= dV/dS

ty, im going to do it, what is the value if should expect?
3. ### Electric field E= dV/dS

how do i get r? do i measure the lines?
4. ### Electric field E= dV/dS

yes that part of it. My second question is how to i calculate for the value E?

any1?
6. ### Electric field E= dV/dS

Homework Statement OK we had a lab and the lab was to draw some dots mapping a electric field. I connected the dots, but i have no idea which way the field points and how to calculate the electric field. I think we need to use E= dV/dS , but i have no idea what dS is. Do i just take the...
7. ### Rotational static equilibrium

ok im no expert but i got the sign to be 30.4 kg. My class is in the same subject right now. so if you know the answer and it is somewhat similar to mines I can tell you how I did it. I don't want to tell you the wrong thing until the answer is confirmed.
8. ### Equilibrium problem

FxsinθL - WcosθL / sin θL = Tension edit: FxsinθL - WsinθL / sin θL = Tension then it will simplfy as , T = Fx-W = Tension... now it doesn't even seem right
9. ### Equilibrium problem

Homework Statement http://img820.imageshack.us/img820/3505/23625990.jpg [Broken] Two uniform beams, each of mass M and length L, are connected by a hinge at the top and by a chain of negligible mass attached between their centers. The system will stand upright on a frictionless surface as...
10. ### Represent (1+x)/(1-x) as a power series.

alright, thanks a lot guys. I'm going to practice some more.
11. ### Represent (1+x)/(1-x) as a power series.

ohh i see it now, thanks you. My class just started this section and I'm kinda new to this. Is there a shortcut of doing this or I have to write out the terms to find power series?
12. ### Represent (1+x)/(1-x) as a power series.

Homework Statement Represent (1+x)/(1-x) as a power series. Homework Equations The Attempt at a Solution I started with 1/ (1-x) = sum (x)^n n= 0 - infinity (1 + x) sum x^n and this is where I am stuck. Homework Statement Homework Equations The Attempt at a Solution
13. ### Is this problem do able?

I don't know initial and finial speed.
14. ### Is this problem do able?

kinetic, momentum , cant think of the last one.
15. ### Is this problem do able?

A proton with initial kinetic energy (5.2 MeV) collides with an alpha particle (initially at rest). The collision is perfectly elastic and the proton travels off at an angle of 133o relative to its initial direction. What is the velocity of the alpha particle after the collision? Assume the...