Ask in Experiment Resolution of Vectors

happyful
Messages
2
Reaction score
0
can you help me in my

Experiment


Addition and Resolution of Vectors



Questions

1-
Compare the graphical and analytical (addition of components) methods for adding vectors.
Which is more accurate? Give possible sources of error for both methods. Why is it useful to use both methods?


What are the possible sources of error in the experimental method? (Why is it necessary to allow the strings to slip loosely about the ring**


**
If the weights of all the mass hangers were the same, could their weights have been neglected? Explain.***






What is the effect of the weight of the ring? What difference would it make if the ring were considerably more massive****


*****
do the thoritcal value of m3 and @3= angle 3 depend upon accelaration due to gravity g



thank you very mush

sara

 
Physics news on Phys.org
Welcome to PF!

Hi sara! Welcome to PF! :wink:

Show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 
thank you tiny yes i am stuk :(


i nee for you help


how i can answer thi question
 
Thread 'Need help understanding this figure on energy levels'
This figure is from "Introduction to Quantum Mechanics" by Griffiths (3rd edition). It is available to download. It is from page 142. I am hoping the usual people on this site will give me a hand understanding what is going on in the figure. After the equation (4.50) it says "It is customary to introduce the principal quantum number, ##n##, which simply orders the allowed energies, starting with 1 for the ground state. (see the figure)" I still don't understand the figure :( Here is...
Thread 'Understanding how to "tack on" the time wiggle factor'
The last problem I posted on QM made it into advanced homework help, that is why I am putting it here. I am sorry for any hassle imposed on the moderators by myself. Part (a) is quite easy. We get $$\sigma_1 = 2\lambda, \mathbf{v}_1 = \begin{pmatrix} 0 \\ 0 \\ 1 \end{pmatrix} \sigma_2 = \lambda, \mathbf{v}_2 = \begin{pmatrix} 1/\sqrt{2} \\ 1/\sqrt{2} \\ 0 \end{pmatrix} \sigma_3 = -\lambda, \mathbf{v}_3 = \begin{pmatrix} 1/\sqrt{2} \\ -1/\sqrt{2} \\ 0 \end{pmatrix} $$ There are two ways...
Back
Top