Questions Asked

Meta:
I don't understand how in problem two in the link how to do step four ? Systems of equations, help.
http://www.docstoc.com/docs/76745993/S…
 updated one year ago
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Meta:
How do I derive the Rydberg constant from the Bohr Formula from the plankeinstein relation Ephoton=hf?
 updated 2 years ago
 8 replies
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Meta:
I am not sure how to do the following:
Show if the equation Y=0.3271 cos(5.1191x + 0.01589t) satisfies the wave equation.
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 updated 2 years ago
 1 reply
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Meta:
Starting with V=Voe^(t/RC) show that t(.5)= RCln2. This is an analysis question for a lab on RC circuits w/ AC. I don't quite understand t…
 updated 2 years ago
 6 replies
 1 Medal

Meta:
I need to derive the loop equation for an RC Circuit Q/CIR=0 to find the equation V=V0e^(t/RC) can someone walk me step by step through it…
 updated 2 years ago
 1 reply
 2 Medals

Meta:
Consider the following circuit diagram. 1) What is the current from A to B 2) What is the current from A to B if the switch was closed 3) Wh…
 updated 2 years ago
 10 replies
 6 Medals

Meta:
For use in DC Circuit calculations, can a battery be modeled as a capacitor?
 updated 2 years ago
 3 replies
 3 Medals

Meta:
Consider the above diagram 1) What is equivalent potential for batteries 1 and 2 if they are 4.0 Volts and 9 volts respectively. 2) If the r…
 updated 2 years ago
 2 replies
 2 Medals

Meta:
Consider the following square, what is the direction of the electric field at point P
 updated 2 years ago
 2 replies
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What would be the current in a copper wire with an electron density of 8.5e28 m^3 in a 2.0 mm wire?
 updated 2 years ago
 2 replies
 1 Medal

Meta:
The equation for Electron Drift Velocity is given as Vd=(e/m)*E*tau what does (e/m) stand for?
 updated 2 years ago
 5 replies
 2 Medals

Meta:
Consider the following electric field: What is the magnitude and sign of the coulomb force between the two charges. Assume the left test cha…
 updated 2 years ago
 8 replies
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Meta:
Consider the following graph of an electric field, is it possible to tell which charge is positive and which is negative just from the graph
 updated 2 years ago
 6 replies
 1 Medal

Meta:
Use Eulers Method with step size [delta] .5 and [delta].25 with the following equation.
 updated 2 years ago
 1 reply
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Meta:
Find the radius and interval of convergence of the series:
 updated 2 years ago
 6 replies
 2 Medals

Meta:
determine if the series
((n^2+1)/(2n^2+1))^2n is absolutely convergent determine if the series…
 updated 2 years ago
 6 replies
 2 Medals

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Use a power series to approximate the integral 1/(1+x^3) from (2/3) to 0 Use a power series to approximate the integral 1/(1+x^3) from (2/3)…
 updated 2 years ago
 14 replies
 1 Medal

Meta:
Can someone explain to me how to perform series comparison test for convergence using an example of a convergent and a divergent. Can someon…
 updated 2 years ago
 7 replies
 1 Medal

Meta:
Solve the DiffEQ (y^2+xy^2)y'=1
 updated 2 years ago
 11 replies
 1 Medal

Meta:
What is an example of a inseparable diffeq
 updated 2 years ago
 15 replies
 3 Medals

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How do I separate (dy/dx)=y*e^(sin(x)+cos(y))
 updated 2 years ago
 1 reply
 3 Medals

Meta:
Consider the integral (x2)^(3/2) evaluated from 3 to 2, how do I prove it's divergent?
 updated 2 years ago
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Consider: (x^4)/4  (x^4) if I evaluate this from infinite to 0 do I get infinite  infinite  0 = 0?
 updated 2 years ago
 3 replies
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Meta:
what is the volume of a solid bounded by the curves y=sqrt(x) and y=x and rotated about x=6
 updated 2 years ago
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Meta:
Diff Eq dy/dx= (ycos(x))/(1+y^2) initial condition is y(0)=1 work below
 updated 2 years ago
 12 replies
 1 Medal

Meta:
Consider the diff eq dy/dt = ((e^y)*sin(t)^2)/y*sec(t))
 updated 2 years ago
 19 replies
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Meta:
Can I get y by itself in this problem by multiplying by LN e^y=x becomes ln(x)=y?
 updated 2 years ago
 3 replies
 2 Medals

Meta:
how do I derive 2^x
 updated 2 years ago
 8 replies
 1 Medal

Meta:
How would I put cos(u^2) in to terms of x using u sub. Could I....
 updated 2 years ago
 47 replies
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suppose the velocity of a particle moving in a line is v(t) =t^22t8. find the displacement and distance traveled from 1<=t<=6. answer is …
 updated 2 years ago
 49 replies
 1 Medal
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