Recent content by drillman9

Homework Statement Knowing that the vapour pressure of water at 25 C is 24 mm Hg, that the oxygen composition of air is 20% v/v and that the solubility of oxygen in water is 31.6 mL/L, demonstrate that the 100% O2 (oxygen) saturation is 0.75 umol (micromoles) Homework Equations...

Homework Statement A horizontal string can transmit a maximum power (without breaking) if a wave with amplitude A and angular frequency is traveling along it. To increase this maximum power, a student folds the string and uses this "double string" as a medium. Determine the maximum power...

Ah yes now its coming together. Thanks for all the help!

Ok, so I got through all the cancelling and substitution and here's what I got x*-w^2 = (Pf*x*g)/(Pb*h) -g from a = x*w^2 and if I divide out I get -w^2 = (Pf*g)/(Pb*h) -g/x how do I get rid of that -g/x (exactly what is that?) and the negative in front of the w

[SOLVED] Simple Harmonic Motion - Floating Object Homework Statement The problem states that an object is pushed down and released. It is floating. The density is P(block) and the area is A and its height is h The fluid's density is P(fluid) The Problem asks to show that it executes...

Ah yes, I should've know. I always over complicate myself! Thanks for the help!

Hi I would really appreciate it if anybody could lead me in the right direction on this one... |A| = |B| |A+B| = 100|A-B| I need to find the angle between A and -B for the statement to be true. Using cosine laws I've come up with the following eqn: |A+B| = 100|A-B| 2|A|^2 + (2|A|^2)(cosx)...