Recent content by Cowtipper

I read on another forum that during or after the huge tsunami that hit in 2004, that supposedly aurora borealis was spotted in the skies over India. The poster said that this is an impossibility, and that is proves that the United States is the cause behind the tsunami, and that it was created...

Well, apparently the pan searing flour isn't what did it. Check this out (I'm pretty sure this is in response to a comment someone left for the original video) http://www.youtube.com/watch?v=dceZlSF7CHQ&watch_response

Whilst perusing the Tube, I found this: What do you think? Did he actually light water on fire? I don't think so.

Aha! That is all I needed to know. Thanks a lot!

Well, I've got this: I'm not sure if it's one to use. E = hc/\lambda Similarly, I have this one: K=1/2MV^{2} However, I'm not sure where or how to use it in this instance, or if I have to use it at all. Man, this stuff is getting tough. I was doing well there for a while too...

Homework Statement If an electron has a measured wavelength of 0.850 x 10^-10 m, what is its kinetic energy? Homework Equations I'm not sure. The Attempt at a Solution And once again, I'm not too sure. Where do I start?

This is really making me mad. I keep getting a "this method must return a result of type int" error message, but obviously I have a return statement trying to return an int. This is a program that is supposed to perform a sequential search for a string index. public static int...

Momentum and kinetic energy are conserved. Conservation of momentum: mvi1 + mvi2 = mvf1 + mvf2 I know that's what you have to use but I'm not too sure how...

1) A 10.0-g object moving to the right at 20 cm/s makes an elastic head-on collision with a 15.0-g object moving in the opposite direction at 30.0 cm/s. Find the velocity of each object after collision. 2) A billiard ball rolling across a table at 1.50 m/s makes a head on elastic collision...

Oh, okay. Thanks a for the assistance.

Oops, that was my mistake. I've edited the problem - it isn't frictionless. I'm very sorry about that...

Homework Statement An object with a mass of 10 kg (this mass is m1) rests on a horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass of 4.0 kg (this mass is m2). The coefficient of static friction between m1 and the...

Number four has been solved. This is number four: 4. A box of books weighing 300 N is shoved across the floor of an apartment by a force of 400N exerted downward at an angle of 35.2 degrees below the horizontal. If the coefficient of kinetic friction between box and floor is 0.570, how...

Okay, I have solved number two: a) 6.54 m/s^2 and b) 32.7 N. Number three, I've solved a), it is 0. But b) still confuses me. I've gotten this far: T=tension Ff=force of friction m=mass g=gravity a=acceleration T-Ff = μmg = ma T-Ff = 0.3(10)(9.81) = 10a T-29.43 = 10a And...

This is for number 2. Is this the kind of thing you're looking for?