Recent content by seeingstars63

Thank you for all of your responses as I found them extremely helpful. I have always thought about joining the Air Force since high school, but at that age, I was dissuaded by my parents (and still are) from pursuing that interest. I also realize that as a soldier, I would be serving my nation...

Hello, I currently hold a B.S. in Physics with a minor in Mathematics, but personally felt that to be more prepared for a job in industry, I would need to obtain a Master's degree, so I went through the whole graduate school application process, got into graduate school, and just recently...

Thanks for the reply, clamtrox. I get what the equation of a straight line is: y=mx+b, but I'm not sure what you mean for finding dx/dy from those equations. There is also a dz.

Homework Statement Prove that the shortest path between two points in three dimensions is a straight line. Write the path in the parametric form: x=x(u) y=y(u) z=z(u) and then use the 3 Euler-Lagrange equations corresponding to ∂f/∂x=(d/du)∂f/∂y'. Homework Equations Stated them...

Hello! I logged into my PF account after some time and I noticed that there was a private post sent to me(?) titled General Warning. The post has expired, but I have no idea what it said and I feel that it may have been important for me to read. Does anyone know who I can contact on this...

I'm working on this problem too. I just was given different numbers. I have the heat required to reach the boiling point in the water as well as how much heat per shake is happening (J/shake), but I'm stuck here.

Homework Statement A chain consisting of five links, each of mass 0.10 kg, is lifted vertically with a constant acceleration of 2.5m/s^2. a.) Find the forces acting between adjacent links. b.) Find the force F exerted in the top link. Homework Equations F=ma W=mg The Attempt at...

Oh, I wasn't familiar with that formula, but for this one, I have to find the derivative of the position vector and put it in the tangent vector formula, and then from there, I have to put the derivative of the tangent vector into the normal vector formula. I'm hoping that someone can help me...

The position vector is r(t)= \sqrt{2}t\bar{i}+e^{t}\bar{j}+e^{-t}\bar{k} and it is asking for the unit normal vector at the parameter which is t=0. I have tried this problem many times and I guess it is all of the simplifying that is driving me bonkers! [b]2. I know that to find the...