Recent content by Rumor

I'm trying to rewrite Newton's law - GMP2 = 4(pi)2r3 as P2 = a3 under these conditions: that the mass M is the sun's mass, the radius is 1 AU, and G being converted to the appropriate units. I get stuck on this problem, and I'm hoping you guys are willing to help me out. To begin with, to...

I've been looking up some information regarding the Owl Nebula, in order to make some calculations of my own. I've only been able to find the V magnitude or the general magnitude of the nebula as a whole. Is there any way to find the B magnitude or the B-V measurement of the star, given what...

It's not specified within the problem given. I just rearranged the given equation ( az = x^2 ) and applied it to z-dot as well, since part of the problem later requires eliminating z and z-dot.

Homework Statement "A bead with mass m slides without friction on a wire which lies in a vertical plane near the earth. The wire lies in the x-z plane and is bent into a shape conforming to the parabola az = x2, where a is a positive known constant. (X is horizontal and z is vertical) The...

Alright, so... I went back and simplified what I had first and ended up with v(dv/dx) = -bv - g. So, after isolating dz, I end up with dz = -(vdv/(bv+g)). Now, I know my next step is to integrate this, but I'm not sure what the limits would be.

Homework Statement "A passenger (mass m) initially at rest steps out of an airplane. Assume down is the positive x-axis and put the origin at the airplane. Assume the air resistance force is linear in the velocity so F(air)= -mbv. Find the distance D he has fallen when his velocity is...

Homework Statement Okay, I'm reopening this question because I didn't understand it as well as I thought I did. "a) Write r-hatc and phi-hat in hybrid component form ( )i + ( )j where the parentheses represent polar coordinate expressions. b) Now use these hybrid expressions to take...

Awesome. Thanks for settin' me straight.

Ah, right! Wow, I've been working on physics problem long enough that I'm starting to mix them. But anyway, after differentiating the psi function twice and plugging it back into the Schroedinger equation, am I correct in thinking that that's all to be done? Aside from simplifying and everything.

Homework Statement "A wave function is given by Aexp[(-x2)/(2L2)] with an energy of E = h-bar2/2mL2. Assuming this is a solution to the time-independent Schroedinger equation, a) What is V(x)? Make an accurate sketch of V vs. x with labeled axes b) What sort of classical potential has...

I'm not sure how to answer this question, so I'm turning to you guys for help. The question, specifically, is: "When timing the fall of a ball, how would you achieve greater precision, with larger or smaller heights?" Any help would you appreciated.