seidi.yamauti
 Name:
 Seidi Yonamine
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 USP
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Questions Asked

seidi.yamauti:
You have 100 marbles numbered 0 to 99 in a bag. You repeatedly draw a marble from the bag (all marbles being equiprobable), note its number,…
 updated 3 months ago
 No Medals Yet
Mathematics

seidi.yamauti:
http://www.feynmanlectures.info/exercises/atwood.html
Why can't i substitute the masses by an unique mass m, and just make F=mg? This way…
 updated 3 months ago
 2 replies
 No Medals Yet
Mathematics

seidi.yamauti:
I'm so lost at this one, i'm feeling dumb. Can someone help me?
http://www.feynmanlectures.info/exercises/atwood.html…
 updated 3 months ago
 No Medals Yet
Mathematics

seidi.yamauti:
A ball with mass m and velocity v hits a wall, and suffers an elastic colision. So it comes back vith velocity v (1 dimension motion).
…
 updated one year ago
 7 replies
 2 Medals
Mathematics

seidi.yamauti:
I wrote it in MIT's 8.01[OCW  Physics] subject, but seems that there are not much movement..
At the end of lecture 12, Prof. Walter Lewi…
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

seidi.yamauti:
At the end of lecture 12, Prof. Walter Lewin asks if the time for an object that is launched from ground zero with an angle != 0 to reach th…
 updated 9 months ago
 1 reply
 No Medals Yet
Mathematics

seidi.yamauti:
So what about wide tires?
 updated one year ago
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Mathematics

seidi.yamauti:
Do you know some good sites for selfstudying?
Other than Open Study and OCW, edx..., is there some place that you actually find organize…
 updated one year ago
 5 replies
 2 Medals
Mathematics

seidi.yamauti:
An object with mass m1=4.00kg and a box with mass m2=5.00kg are attached by a wire (massless) that pass trough a sheave (negligible mass too…
 updated one year ago
 17 replies
 1 Medal
Mathematics

seidi.yamauti:
Solve the wave equation [if someone can post the wave equation] by the separation of variables method (y(x,t)=X(x)T(t)) for the case of both…
 updated one year ago
 12 replies
 1 Medal
Mathematics

seidi.yamauti:
[linear algebra] <(x1,x2),(y1,y2)> = x1y1 + tx2y2
For which valor of t, it is an in internal (scalar) product?
 updated one year ago
 12 replies
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Mathematics

seidi.yamauti:
An undamped oscillator of mass m and natural frequency Wo moves under the action of an external force F=Fo sin(wt). Starting from the equili…
 updated one year ago
 8 replies
 1 Medal
Mathematics

seidi.yamauti:
An undated oscillator of mass m and natural frequency Wo moves under the action of an external force F=Fo sen(wt)! Starting from the equilib…
 updated one year ago
 11 replies
 No Medals Yet
Mathematics

seidi.yamauti:
What is the maximun of f(x)=3cosx+2sinx ?
Whithout using derivatives
 updated one year ago
 26 replies
 8 Medals
Mathematics

seidi.yamauti:
A little platform oscile with a frequency of 4hz and an amplitude of 7 cm, attached to a vertical spring. A small object is poised on the to…
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

seidi.yamauti:
It's been on the web since a while
48÷2(9+3)=?
…
 updated one year ago
 22 replies
 4 Medals
Mathematics

seidi.yamauti:
There's a problem in Halliday I  chapter 1
In my book it's question 19 (but it's a brasillian version). I'll try to translate it from por…
 updated one year ago
 7 replies
 3 Medals
Mathematics