Recent content by fd25t6

Hello all, hoping to get a bit of help with a diff eq problem that goes like this: Find an explicit solution of the given initial-value problem, x^2*(dy/dx)=y-xy ; y(-1) = -6 I separated my variables to get: S (1-x)/x^2 dx = S 1/y dy Integration of left via partial fractions: S 1/x^2 dx...

Well, PE= mgh so 30(6) = -180 J

Is it really as simple as 30sin37?

A 30-N box is pulled 6.0 m up along a 37 °inclined plane. What is the work done by the weight (gravitational force) of the box? Ok so attempt goes like this: W = FDCOS(37) So force weight parallel to the plane is 30sin37 = 18.05N " perppendicular " 30cos37=...

such a silly mistake.. it has been a long day. Thank you much

Hello everyone, I am having a bit of an issue evaluating the arc length of the function 1/2(e^x+e^-x) interval [0,2]. We were instructed to solve using the arc length formula square root of 1+(dy/dx)^2. The solution should be 3.627 according to my CAS. However my calculations are yielding 3.511...

sorry my computer was acting weird i edited in the rest of the info.

Homework Statement Hello, i was just hoping someone could check my work on a problem I am working on. There are two boxes stacked on top of one another m2 is the bottom box which is sitting on the ground and has a weight of 10N. m1 is on top of it and has a weight of 5N. Directly to the left...

thank you so much for your help... for some reason i had gotten away with just simply throwing a negative sign in front of the vector on all my practice problems up until this one. i thought i was going crazy. once again your help is very much appreciated...

A surveyor walks 120 meters from a beginning point at 0 degrees along the east boundary line. he then turns 90 degrees north for aprox. 260 meters. on the way back he then walks 325 meters west at 155 degrees. determine the magnitude and direction of the resultant vector using the head to tail...