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 Name:
 Alex Elliott
 School:
 University of Colorado at Boulder
 About:
 I like to drive, and ski.
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 Questions Asked
 13
 Questions Answered
 7
 Medals Received
 7

 Questions Asked
 13
 Questions Answered
 7
 Medals Received
 7

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Questions Asked

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Group Title
Use the change of variables s = 1/r and t = θ to transform and evaluate the polar coordinate integral of (1/r3)*r*dr*dθ over the infinite re…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

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Group Title
Electric charge is distributed throughout 3space with density proportional to the distance from the xyplane. Show that the total charge in…
 updated 2 years ago
 No Medals Yet
Mathematics

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Group Title
For vectors, find the value(s) of "a" making v= (4a)i2j parallel to w= a^2i+6j
 updated 2 years ago
 No Medals Yet
Mathematics

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Group Title
Find a function f(x,y,z) whose level surface f=2 is the graph of the function g(x,y)= 4x+5y.
 updated 2 years ago
 No Medals Yet
Mathematics

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The total reserves of a nonrenewable resource are 400 million tons. Annual consumption is 25 million tons per year and increases at 1% per…
 updated 2 years ago
 No Medals Yet
Mathematics

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Group Title
Find the volume of the solid obtained by rotating the region bounded by y=x^2, y=1, and the yaxis about the line y= 3
 updated 2 years ago
 13 replies
 1 Medal
Mathematics

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Group Title
Find the arc length of the graph of the function 3*sqrt(x^3) from x=5 to x=8
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

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Group Title
The region bounded by y=e^(2x), y=0, x=2, x=1 is rotated around the xaxis. Find the volume.
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

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Group Title
Consider the area of a triangle. The height of the triangle is 7 and the length of its base is 4. We have used the notation Dh for Delta h.…
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

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Group Title
In comparing improper integrals, what is a similar integrand to ∫ (1/(e^(2x)+1))dx from a = 1 to b = ∞. I know it converges, I just can't f…
 updated 2 years ago
 7 replies
 4 Medals
Mathematics

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Group Title
For some constants A and B, the rate of production R(t), of oil in a new oil well is modeled by: R(t) = A + Be^(t) * sin(2πt)
Where t is …
 updated 2 years ago
 No Medals Yet
Mathematics

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Group Title
Show that for all integers m and n, with m ≠ +/n, the integral from π to π of cos(mθ)cos(nθ) dθ = 0
 updated 2 years ago
 12 replies
 1 Medal
Mathematics

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Group Title
Split (4/(y^316y))dy into partial fractions
 updated 2 years ago
 5 replies
 1 Medal
Mathematics