Recent content by rasgar

Actually I just realized what my mistake was after the second post I made. The homework i had was online and the response checker was case-sensitive. I made the L a caps and got it right, sorry for the trouble guys.

"J...=Lmv" Yea I actually got that "Well I easily got the solution with the known v (m*v*l)" The problem is I have to do the problem solely with M, m, and L (I accidentally put lower case L there sorry). Thanks for your response though.

1. Homework Statement A wooden block of mass M resting on a frictionless, horizontal surface is attached to a rigid rod of length L and of negligible mass. The rod is pivoted at the other end. A bullet of mass m traveling parallel to the horizontal surface and perpendicular to the rod with...

Update: Since the homework system allowed me 3 guesses before I get marked off, I took a stab at it. Since the spring constant is only 30N/m, and the problem calls for a small change in distance, I figured it wasn't too far away form 1.24. The answer is 1.26, but I still don't know how to get...

There's about 15 minutes left and that still doesn't fix it. Try to solve it and see if you get a speed of 1.24m/s. Taking away potential energy will make the system go even slower than my already too slow answer.

I have 1 hour and 15 minutes as of the end of this post. Please hurry. I'm not lazy just in a rush.

I don't think that helps. The problem said that the spring is unstretched, and I'm pretty sure it's not compressed. My results for the calculation were too low, so removing even more potential energy from the system would make the situation worse. Please note that if you think you have it...

Read the edit

Sorry it says the attachment is pending approval. Here's a direct link. http://i72.photobucket.com/albums/i185/panda****er/p7-45.gif Also, the profanity editor is preventing the link from being posted. I know the name is childish, but this is my photobucket account from when I was around 13...

heres a digram attached. Also, I've tried setting the change in kinetic energy to incorporate the fact that the 20kg wight goes along the incline, so the new attempt has sqrt(2*PE/(30+20/sin(40))). After playing around with it for a while, still no cigar.

need help on potential energy problem (less than 45 min left)) This is due online at 11:00 pm tonight! Otherwise I wouldn't post here I'd ask my prof for help. Homework Statement A 20.0 kg block is connected to a 30.0 kg block by a string that passes over a light, frictionless pulley. The...

If it is snapped out of its state, can it still act as a liquid and manipulate other solids?

Quantum entanglement is a quantum mechanical event that causes two particle to essentially be part of one entity. Read the link I posted.

If you create an electromagnetic field that forces electrons to maintain a specific form, would it act as a solid, repelling the valence shells of other atoms without causing chemical reactions?

In this debate you have to be weary of what 'observe' means. When quantum physicists talk about observation, they talk about the small amount of energy exerted on a physical system that is needed to extract the information, such as a photon bouncing off a phosphorous atom and breaking down the...