Ask in Experiment Resolution of Vectors

happyful
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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

 
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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
 
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Hi, I had an exam and I completely messed up a problem. Especially one part which was necessary for the rest of the problem. Basically, I have a wormhole metric: $$(ds)^2 = -(dt)^2 + (dr)^2 + (r^2 + b^2)( (d\theta)^2 + sin^2 \theta (d\phi)^2 )$$ Where ##b=1## with an orbit only in the equatorial plane. We also know from the question that the orbit must satisfy this relationship: $$\varepsilon = \frac{1}{2} (\frac{dr}{d\tau})^2 + V_{eff}(r)$$ Ultimately, I was tasked to find the initial...
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