Recent content by corey2014

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    Undergrad DE problem: Dog chasing a rabbit

    So how would I do this if the rabbit has 1/2 the velocity? how would i set up an equation for how X, and Y will change?
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    Undergrad Computer Program for Dog Chasing Rabbit

    Consider a rabbit which sits a distance L east of a dog. At time t = 0 the rabbit starts running north (in y-direction) at constant speed v. The dog starts chasing the rabbit at constant speed 2v, and always changes its running direction towards the rabbit. The rabbit always runs north and never...
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    Undergrad Computer Program for Dog Chasing Rabbit

    Hey all, I am trying to work on my programming skills. I write programs in C, and I am attempting to write a computer algorithm such that for some small t. Let's call it dt we get the position of a dog, and the position of a rabbit, as the dog chases the rabbit. This is being asked on a...
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    Angular Velocity and Inertia in a Collision

    no its an online problem... and the first case would be correct yes? also, thanks for the help
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    Angular Velocity and Inertia in a Collision

    ok so what I tried to do is I took mvrsin(theta)=I(omega) then substituting in and solving for omega i get (omega)=mvrsin(theta)/((1/12)MD^2+mr^2) where m=.2kg M=5kg v=20m/s r=2.2/2=1.1m D=2.2m theta=70deg I thought this was right but I am not getting the correct answer I get...
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    Angular Velocity and Inertia in a Collision

    ok so angular momentum where we have L=I(omega), but then the momentum coming in would be 20(.02)? also does I=mr^2/12
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    Angular Velocity and Inertia in a Collision

    so then am I supposed to use m1*u1+m2*u2=(m1+m2)v2?
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    Angular Velocity and Inertia in a Collision

    Homework Statement A uniform thin rod of length L=2.2 m and mass 5 kg can rotate in a horizontal plane about a vertical axis through its center. The rod is at rest when a 0.2 kg ball of putty, moving in the horizontal plane of the rod, hits and sticks to one end. As viewed from above, the...
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    Use Fourier Analysis to solve

    no I don't know it, or maybe I just don't recognize it... When i broke it down I got 1/n!+1/(n+1)!+...+1/(n+1)!+1/n!
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    Use Fourier Analysis to solve

    Homework Statement let f[k]=1/k!, then let fsub2[k]=f[k] convoluted with f[k] what is a simple formula for fsubm[k]? Homework Equations f[k] convoluted with f[k] = summation from negative infinity to infinity of 1/m! * 1/(n-m)! The Attempt at a Solution I tried a base case, but...
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    High School Why Is Normal Force Less Than mg at the Top of a Hill?

    So in class today we were talking about Normal Force, and I was really confused on one diagram. Here is a link about the question, but I don't understand why n<mg because if it is less than mg wouldn't that make it go through the earth? not sure but help understanding would be great...
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    Characteristic and minimal polynomials

    Homework Statement Let V be a finite dimensional complex vector space and T be the linear operator of V. Prove that the following are equivalent a V has a basis consisting of eigenvectors of T. b T can be represented by a diagonal matrix. c all the eigenvalues of T have multiplicity...
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    Inner Products in R2 other than euclidian

    Yes, i know the definition, however i don't know how to show that it has to be linear, or that the dot product has to be of that form...