# Recent content by SpeeDFX

1. ### Spring System with Variable Tensions, functions of displacement.

each mass has a spring sticking straight out of it. I guess a better way to describe it would be the following.. 2 masses with springs are attached in the followin order. mass1_spring1_spring2_mass2 the masses have some initial velocity toward eachother
2. ### Spring System with Variable Tensions, functions of displacement.

woops. I meant... F(at B)= 0 = K1(X1)*X1 - K2(X2)*X2
3. ### Spring System with Variable Tensions, functions of displacement.

So...I wanna solve the problem where two masses on springs collide into eachother on a frictionless surface. The two masses are different, and both springs' tensions are linear functions of x. The two mass-springs collide into eachother, each having some initial speed V1 and V2,and the...
4. ### Any physics students from Berkeley or UCLA here?

Wow that's exactly the the kind of information I was looking for. Exactly like you, I'm coming from a community college. It's good to hear that you're experience has been positive there. Your story is kindof funny because it's similar to mine. At my community college there's a couple of...
5. ### Any physics students from Berkeley or UCLA here?

I got accepted to UC Berkeley and Los Angeles. I would like to know what being a physics student at these 2 schools is like. Were the professors enthusiastic? In general, were the students in this major helpful to eachother? How about the availability of the professors and/or someone else from...
6. ### Cause of this diffraction?

Well, if the orientation of the "streamers" is always the same with respect to your head, then they're probably being caused by some filtering (or polarizing?) around your eyes. My best guess is your eyelashes are the cause. Even though you tried to cover them up, light is ligh,t and it will...
7. ### Electromagnetic induction and Faraday's Law

Ok, so that diagram represents what I was saying perfectly. If you pretend you are the small face of the magnet (on the north side) that is entering the coil as you enter the coil, you will see the current moving counterclockwise as you enter the loop. Looking at the coil from the top (as...
8. ### Electromagnetic induction and Faraday's Law

If you look at wire coil down it's central axis (so that coil looks like a single ring) then shove a magnet in this hole, the current induced in the coil will go counterclockwise. If you hold a wire with your right thumb lying along the wire in the direction of current and wrap your fingers...
9. ### Angular Velocity of Bullets

Does anyone know where I can find a list of angular velocities of different kinds of bullets fired from different kinds of guns?
10. ### Heat Transfer problem need help !

I remember the the equation for a problem like this was something like.. power = [(area)(change in temp)]/[sumation of (length/conductivity)] , where the lengths are the thickness of each individual layer, and then the "conductivity" is the conductivity of that particular layer. sorry, I'm...
11. ### Mass of air leaving a room with temp raised.

Yo, that looks good to me.