Recent content by yoyoz41

I don't know how to get the last question (j) The tungsten filament in the 44 ohm bulb is 10 mm long and has a cross-sectional area of 2 multiplied by 10-10 m2. What is the magnitude of the electric field inside this metal filament? can anyone answer the last question for me??

mee too I have the same problems on this one too

I also have question on this too can someone help us??

hey, Jchohnac, how did u calculate out the energy of one quantum ?? is it hbar*sqrt(ks/m)? or hbar*sqrt(4*ks/m)?

I can't get the right answer with that equation, too hbar*sqrt(ks/m) = 1.054e-34*sqrt((4*12)/(.012/6.02e23) = energy btw, Jchohnac, where does the "factorial" come from?

haha, maybe, caz the person who anwer it also with no explanation

yeap now I get it haha hbt problem 6 part b?

I kinda know how he get it but with no explanation, so don't ask me 5/1287= x/44000 5*44000/1287 = 170.9401 170.9401/5=34.188034

gooooooood job that's the ans... but don't know why haha

not yet I am still trying haha

thx a lot now I know how to do part a but still not sure abt part b there is one formula that post online but I didn't get the right solution http://answers.yahoo.com/question/index?qid=20090413191454AApVs7Y u can try anyways

omg u are my hero thx a lot

haha terrible trying to study and doing homework at same time omg... exam... and recitation... tmr

Homework Statement A carbon nanoparticle (very small particle) contains 5000 carbon atoms. According to the Einstein model of a solid, how many oscillators are in this block? I didn't know how to start, can anyone give me a suggesstion??

kk thanks lol