Recent content by Rock32

Edit*: problem solved. Thanks for the hint Dick.

Homework Statement A jet flies with an airspeed of 310 mph due east (assuming +x is due east). It is climbing vertically with a velocity of 50 mph. A wind blowing toward northeast has a speed of 55 mph. Homework Equations Find the x,y,z components of the plane's velocity relative to...

This isn't really a homework question, so I'm hoping I can just get a straight answer from someone (although it is related to questions). I realize that you can choose U = 0 anywhere you want in a gravity-related problem, ideally choosing a place where it is easiest to manipulate mgy values...

Yes, sorry for not clarifying. The (a) inside the trig functions stood for the angle (30), and a1/a2 were the acelerations.

I would personally advise keeping the equations in the form of algebraic variables (m1/m2/g/a/T), then solving for the variables. When you get to more complicated problems, doing all of the necessary algebra before plugging in numbers makes it easier not to make mistakes. You're rushing...

Homework Statement Find the integral from 31/2 to 3 of 1/(x) ((x2 +9))1/2 I tried to substitute x= 3tanu, and I get down eventually to a solution that is (sec(pi/4) - sec(pi/6)) I realize integrals can have many forms, but the form in the back of my book isn't even close to...

Right now, I'm torn between 4 majors, 2 of which are fairly similar (chem and chem engineering). My main questions is out of those 4, which one do you think will offer the best career options with just a B.S. Right now I'm not planning on a masters or PhD program. A few things about me...

This isn't really a homework problem, but I wasn't sure where else to ask this. The area under (integral) a velocity vs. time graph is total displacement, or if it is absolute value'd, total distance traveled. So then, what does the area under a position vs. time graph signify, if anything...

I've tried that, in a way, for years. A few months ago a started reading a textbook called Basic Electricty & Electronics. I got about 200 pages through it before I just kind of forgot about it. I picked up another book, Cosmos by Carl Sagan, which interested me greatly. That is, until I got...

I'm starting school at the University of Arizona soon, and I am very torn on which major to choose. I realize that most people change their major 2-3 times by the time they graduate, but any suggestions would be great! Here is a little bit about me: Throughout high school, I excelled in my...

Bah, you're right. I guess I just mixed those 2 up when I was writing up the question. Thanks for all your input everyone!

Homework Statement Given 2y^3 +(6x^2)y-12x^2+6y = 1 A. Show that dy/dx = 4x -2xy/x^2 + y^2 + 1 B. Write an equation of each horizontal tangent line to the curve C. The line through the origin with slope -1 is tangent to the curve at point P. Find the x-y coordinates of point P. The...