Recent content by ColtonCM

I switched from a biochemistry route to an astronomy route by applying to Astronomy Masters programs. I'm not sure what you mean by qualifying exams, here in the U.S.A., outside of the GRE tests, there aren't really any exams you take to get into graduate school for a Masters/PhD, they just...

Apologies for the long read. I just graduated with a degree in biochemistry from the University of Denver. I started off as a biology major because I naively assumed there would be less math. Lo and behold, the calculus sequence was required. Till this day, I still haven't had beyond Algebra...

The Problem: A 1.80 mol sample of an ideal gas is compressed isothermally from 58.1 L to 15.6 L using a constant external pressure of 2.72 atm . Calculate W: Calculate Q: Calculate ΔU: Attempt at solution: I tried W = P(ΔV) to no effect, W = nRTln[Vf/Vi] to no effect. The online...

I go to a university that operates on a three quarter per year system, with 10 weeks per quarter. This quarter started out fine, but my dad's condition suddenly deteriorated and he passed away (I was led to believe he had at least 2 years left from doctor expectations about the development of...

Homework Statement The general wave equation can be shown as: y(x,t) = ymsin(kx-ωt) Homework Equations See above The Attempt at a Solution My question relates to the variables present in this equation. I understand what the amplitude is, its the magnitude of the maximum displacement of...

Sounds good, thanks!

Homework Statement [/B] This is the question I have (from a worksheet that is a practice for a quiz). Its a conceptual question (I guess). I understand how to solve ratio test problems. "Is this test only sufficient, or is it an exact criterion for convergence?" Homework Equations Recall the...

Hmm no matter what I solve for, there is always a v, v0, or t in the equations, making it unsolvable.

I followed Chet's template exactly and he okay'd my results. I did locate the error in the acceleration though. Copy and pasted from above: Mass = 0.25ρV Weight = 0.25ρgV Buoyant force = ρwatergV Weight of water = ρgV The net force is the buoyant force, going upwards. So Newton's second law...

Setting it equal gives 0.75g after both density and V cancel out, which equals 7.35m/s2. I am good so far. How about relating this acceleration to how high above the surface the ball will travel once released? Or is it a trick question (my concepts here might be wrong but bear with me) and the...

Oh okay, let me attempt to complete your initial statements then. Buoyant force = F = ρwgV Mass of ball: m = 0.25ρV W = 0.25ρgV (from W = mg). Force Balance: ρwgV - 0.25ρgV = 0.75pgV Is this how you meant? Thanks, Colton

Forgive me, but I'm unsure what you mean. Are you saying to take Density = (Mass)/(V) where V is the volume of the ping-pong ball, solve for V so that it is in terms of mass and density, then substitute that into something else to eliminate the V variable entirely? That would still leave mass of...

Homework Statement Direct problem statement: Imagine you are playing with a Ping-Pong ball in a swimming pool. You push the ball down to a depth of 1 m below the surface, then release it. How high above the water surface will the ball shoot as it emerges from the water? Assume the ball has a...

What if, to counteract what you just mentioned, I do those free (or almost free) online courses where they give out those certificates of completion just to show that I've been maintaining an active knowledge base in science and mathematics?

I'm a third year biochemistry major, minoring in mathematics and physics. When I finish this degree I'm going a cheaper public university to finish either an astronomy or physics degree because I think I want to do something solar-system related in terms of industry and/or research. But there...