Homework Statement
"Supposing that at perihelion a comet is 1 Au from the sun and its speed at that point is 200km/s( in a frame of referance in which sun is stationary). Find its mean PE and KE to one sig digit. Does it satisfy the virial theorem?
Homework Equations
K= .5mv^2
U=-GMm/r...
Hmm, well the Computer accepted my answer for part one, but it does give a bit of error room.
Well I just maxed out all my tries, but thanks anyway. I'd still like to understand how to do it for future reference. my last try was 125/84.7 which didnt work :(.
The next question was all about...
Homework Statement
R1=17.0, R2=84.0 , R3=24.0
http://capaserv.physics.mun.ca/capalibrary/Graphics/Gtype1021/A5Problem27.gif
The first question was find the Req across AB, I got that to be 82.0 ohms, which the computer said was right,
Next question is :
If VAB = 125.0 V, what is the current...
I have a table of time values and speed values, that I want to plot in Mathematica. WHats the easiest way to plots these one vs the other?
Should I turn them into Lists first? :S
[SOLVED] Level Curve
Homework Statement
For the given equation sketch the level curve F(x,y)=1
F(x,y)= x^2-y^2
Homework Equations
The Attempt at a Solution
Would this: x^2-y^2=1 still be a circle? What will the minus change?
[SOLVED] Electric Potential
Homework Statement
20. [1pt]
A 30.6- cm-diameter conducting sphere is charged to 538 V relative to V = 0 at r =infinity. What is the surface charge density sigma?
Correct, computer gets: 3.11E-08 C/m^2 = Sigma, r=.153
21. [1pt]
At what distance will the potential...
[SOLVED] Activation Energy related to rate.
The activation energy for the reaction : 2N_{2}O_{5} (g) \rightarrow 2N_{2}O_{4} (g) + O{2} (g), is 103 kJ/mol.
The gas constant is 8.314 J/mol*K
Using only information given in this problem calculate the temperature at which the rate of the...
yeah I think I'm doing vector calc next year. I am doing Calculas III now. Series and sums and stuff. we do double integrals in a month or so I thin, ill probbaly understand better than.
thanks for you help
.2 was k times A.
its not your explaining that's the problem, we did no questions like this and there are none in the text.
I got the right answer now thanks for all your help! know any place I can do some supplimentry reading on this subject? my textbook sucks