Recent content by pezzang

I have a question for Heisenberg's uncertainty principle. Here is the question: You are driving your car when you race thru a stop sign and get subsequently pulled over. The cop measured your speed within a meter of the stop sign. You decide to use the uncertainty principle as your defense...

pervect, how would you prove that mathematically rather than verbally saying it? Is there any equation that would justify your statement? I am not a physics person so I don't really know what you are saying until I see mathematical equations that could clarify my understanding.

Ok, here are my final questions after perusing over your replies. 1.How do we deduce that (1/2)h is in fact constant? I know that angular momentum has to be constant but HOW DO WE PROVE IT? 2.in a part where I have to show that h^2/(GM) = ed = b^2/a, I found out that e and d were...

This is actually a math project. Can you prove the above in mathematical temrs? i don't know if you understand what i am saying.

thank you very much. ill look over and see if i understand

I am doing this project on kepler's law and can't figure out something. part a (in the process of proving kepler's second law)of this is to show that h = |r|^2(d(theta)/dt) k when r = (|r|cos(theta))i + (|r|sin(theta))j and h = r x r' = r x v. I showed it by taking derivative of r and cross...

I TRULY APPRECIATE YOUR HELP ALONG THE WAY. EVERYONE OF US WHO GETS HELP FROM YOU ARE GRATEFUL TO YOU! THANK YOU SO SO SO SO SO MUCH!

Thank you again for your advice. I have found part (b) but i really can't solve part (c) and (d). Can you please explain the answer in detail? Meanwhile here is part (b) (b) a(tan) = (dv)/(dt) = r*(dw)/(dt) = r*alpha. a(tanA) = a(tanB) R*alpha = (2R)*alpha(B) alpha(b) =...

Than you so much. Here is what I have so far after getting your advice. (a) Moment of Inertia of a disk is equal to I = (MR^2) / 2. So, I(B) = (1/2) (M)(2R)^2 = 2MR^2. Therefore, the answer is 2MR^2. (b) Since the disks are connected by a chain, they have the same angular acceleration...

i tried but it does not work..ok i will explain instead in the first picture for question part (a) only, there are two regular circles. circle A has a radius of R and circle B has a radius 2R. They have the same mass and are indeendent of each other. in the second picture which will be used...

can i send you email so that you can see the pictures? Please give me your email address. Thank you, again.

Hi, thank you so much for making this kind of post for students like me. I have tried the quesotins but i want to make sure that i was right. if worng, please correct me. THANK YOU SO MUCH. Also i had attached pictures of the question to give you enough information. PLEASE REFER TO THE PICTURE...

"Hi, I have a question on max vol. q. Its invloved with multivariable calculus. Q) Find the volume of the largest rectangular box with edges parallel to the axes that can be inscribed in the ellipsoid 9x^2+36y^2 + 4z^2 = 36. What i did was i found the three x,y and z-intersection points...

Hi, I had problem solving one question. Please help me. I included my answers. Please check to make sure that my way is right. 1. IF f(x,y) = x^2 +4y^2, find the gradient vector f(2,1) and use it to find the tanenet line to the level curve f(x,y) = 8 in the xy-plane at the point (2,1)...

HOW ABOUT OTHER PROBLEMS? DID YOU JUST IGNORE OTHER QUESTIONS? AND THE HEIGHT IS NOT GIVEN. WE HAVE TO BE ABLE TO SOLVE IT WITHOUT THE INFORMATION ABOUT THE HEIGHT. PLEASE OTHER PEOPLE HLEP ME.