Recent content by Weatherkid11

A train is running smoothly along a curved track at the rate of 50 m/s. A passenger standing on a set of scales observes that his weight is 10% greater than when the train is at rest. The track is banked so that the force acting on the passenger is normal to the floor of the train. What is the...

I am working on a Differential Equation problem and I am stuck on these two integrals: http://forums.cramster.com/Answer-Board/Image/cramster-equation-20064101738436328028752372062504976.gif and...

Hmm that is the way our professor told us how to do it. Also another way someone had told me to do it was doing the wronskian twice.. there seems to be so many ways to do this type of problem

Given that http://forums.cramster.com/Answer-Board/Image/cramster-equation-200641003458632802260985487500893.gif is the complementary function for the differential equation http://forums.cramster.com/Answer-Board/Image/cramster-equation-200641003635632802261951581250765.gif use the variation...

Use the method of variation of parameters to find a particular solution of http://forums.cramster.com/Answer-Board/Image/cramster-equation-2006491914366328020687673812501253.gif ok i know first i do...

ok, I got that A17 has to equal -6 to make it zero, so then that would mean A=-6/17, so the final answer would be (-6/17)17 + 3(2sin²x)+2(3cos²x)=0, Correct? And thanks for the help

OK, so then I would get C2 = 3, Then I would do the derivative of y and get -9sin3x+3c3cos3x, and use y'(0)=-1, so that would be -1=-9sin-3+3c3cos-3

So basically something like: 3g(x) + 2h(x) =6sin²x + 6cos²x = 6, but then where do I go from there?

Consider the initial-value problem y'''+9y'=0, y(0)=3, y'(0)=-1, y''(0)=2. Given that http://forums.cramster.com/Answer-Board/Image/cramster-equation-2006318224846327831888477500005072.gif are three linearly independent solutions of the given homogeneous linear differential equation...

Show directly that the following functions are linearly dependent on the real line. That is, find a nontrivial linear combination of the funtions that vanishes indetically. f(x)=17, g(x)= 2sin^2 x, h(x)= 3cos^2 x Do you just take the 1st and 2nd derivatives and do the determinate?? I am so...

OK i worked off of what you got and i got http://www.freemathhelp.com/forum/mimetex/pictures/d1183703930c2d1a7c5a37255ca42e49.gif But this integral looks VERY hard to solve

Find the exact value of http://forums.cramster.com/Answer-Board/Image/cramster-equation-20051129112586326885897811250007777.gif where http://forums.cramster.com/Answer-Board/Image/cramster-equation-20051129110356326885883583125005816.gif and C is the line segment from (1,2,1) to (6,4,5)...

LaGrange Multipliers! Help! Use the Lagrange multiplier method for 3 variables to find the points on the surface 3xy-z^2=1 that are closest to the origin. I tried using the gradient= lamda(granient) and ended up getting (-3/2,0,-1). but i think i did it way wrong. Can someone please help...

Does this sound right? You are standing on a log and a friend is trying to knock you off. He throws the ball at you. You can catch it, or you can let it bounce off of you. Which is more likely to topple you, catching the ball or letting it bounce off? Briefly explain what physics you used...

Please let me know if I am on the right track for these problems. There are two other ones i have added. PLease let me know if i am right for all four. Thanks a bunch! 1) A weight lifter picks up a barbell and 1. lifts it chest high 2. holds it for 5 minutes 3. puts it down. Rank the...