Can Anyone Help with Griffiths' QM Problems for an Exam?

  • Thread starter Thread starter mazmaz
  • Start date Start date
  • Tags Tags
    Qm
AI Thread Summary
The discussion revolves around a request for help with specific problems from David J. Griffiths' "Introduction to Quantum Mechanics" in preparation for an exam. Forum members emphasize the importance of attempting the problems independently and suggest that the requester post specific questions or areas of difficulty for more effective assistance. Concerns are raised about the ethics of seeking direct answers for exam questions, with members advocating for a collaborative learning approach rather than simply providing solutions. The conversation highlights the expectation of courtesy and effort in seeking help within the forum community. Overall, the focus is on encouraging self-study and responsible engagement with academic challenges.
mazmaz
Messages
1
Reaction score
0
Hi there, iam a new memeber so pls give me a warm welcome.
Actually i am taking an exam in QM and i have been asked to answer some of problems in David J.Griffiths"introduction to QM" as below:

Problems# 4.20, 4.21,4.27.4.28,4.29,4.30,4.31 pages# 150-159
Problems#5.30,6.1,6.2,6.3 pages #218,225,226.

So pls help me to answer or to find answers asap.
 
Physics news on Phys.org
Why not trying reading the book and trying to do the problems yourself? If you have specific questions, or places where you are stuck, you'll get plenty of help here. On the other hand, if you are just looking for someone to do your work for you...
 
I wish i could help... But i don't have the book you referred too...and I am sure a lot of other people are thinking the same thing...try to put the question in the post next time...
 
Why are we supposed to help you on an exam? Isn't that cheating?
 
This forum doesn't consist of a bunch of nerds just eager to do your homework for you. Usually the best way to get help is to list the problem first, show some work, and give a general idea that you know where you're going. I'm not trying to be rude, I just see it as a matter of courtesy.

sorry, that probably isn't the "warm welcome" you were looking for. My apologies.
 
Last edited:
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Thread 'Egg Drop Challenge! Need ideas for winning designs'

I was thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
View full post »

Similar threads

Help with understanding this rigid-body equilibrium problem
Replies
4
Views
1K
Cracking Exams: Overcoming Knowledge Gaps for Intro QM
Replies
2
Views
1K
Need help with this unequal length bifilar pendulum
Replies
21
Views
4K
Quantum Comparing Griffiths and Zettili for QM: Help Needed!
Replies
11
Views
8K
Help Calculating probability between 2 limits for the ground state
Replies
28
Views
2K
Help with Next Exam: Forces, Kinetic Energy & More
Replies
1
Views
1K
Help with interference question AH physics? exam tomorrow :(
Replies
2
Views
2K
Problem using Griffiths Intro to Quantum Mechanics
Replies
8
Views
4K
Probability problem from Griffiths QM
Replies
2
Views
3K
A How do entanglement experiments benefit from QFT (over QM)?
10
Replies
473
Views
29K

Hot Threads

Recent Insights

Back
Top