Recent content by ttiger2k7

Ah, got it.

Homework Statement A gas has a Henry's law constant of 0.150 M/atm. How much water would be needed to completely dissolve 1.49 L of the gas at a pressure of 720 torr and temp of 14 C.Homework Equations m = amount solute (in mol)/mass solvent(in kg) M = amount solute (in mol)/volume solution...

Thanks, but the problem is asking for a mesh analysis.

Homework Statement Use mesh analysis to find i_{x}. http://img16.imageshack.us/img16/3384/circuitwd7.jpg Where R_{1} = 100 ohms , R_{2} = 50, R_{3} =100, R_4 = 220, and R_{5} = 470. V_{s} = 15 V. Homework Equations V = iR \Sigma V=0 The Attempt at a Solution First of...

Homework Statement The air in a bicycle tire is bubbled through water and collected at 25 ^\circ {\rm C}. If the total volume of gas collected is 5.25 L at a temperature of 25 ^\circ {\rm C} and a pressure of 734 torr, how many moles of gas was in the bicycle tire? Homework Equations PV...

Homework Statement What is the area of a parallelogram that has points A(1,2,-3), B(2,0,4), & C(5,1,-2) as three of its four vertices? Homework Equations none, really The Attempt at a Solution First, I found two vectors, \vec{AB} and \vec{BC}. \vec{AB} is <1,-2,7> and \vec{BC}...

[PLEASE HELP!] Forces in members of a truss Homework Statement A barrel vault truss is loaded as shown. Knowing that the length of the bottom chords DF, FH, ..., and QS is 3 ft, determine the force is members IK, JL, and JM. http://img68.imageshack.us/img68/4817/fyjfhjfgjhfghgx8.jpg...

are you sure that sin(90+theta) = cos(theta)? It's very close, but I don't think that's a correct statement. edit...nevermind. I'm assuming you meant pi/2 instead of 90. THANKS! I cannot tell you how much of a help you've been.

So I am assuming you want me to solve these equations for \theta, right? Well, this is what I have: \frac{s}{sin( \theta)} = \frac{l}{sin( \angle BAC)} s = \frac {l sin (\theta)}{sin( \angle BAC)} then plug s into: \frac{P}{sin( \angle ABC)} = \frac{ks}{sin( \angle CBP)} to get...

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Do I need to know the original unstretched length of the spring? and btw: the correct answers are supposed to be a) tan^{-1} \frac{P}{kl} b) 63.4 degs

Homework Statement A vertical load P is applied at end B of rod BC. The constant of the spring is k and the spring is unstretched when \theta = 0. (a) Neglecting the weight of the rod, express the angle \theta corresponding to the equilibrium position in terms of P, k, and l. (b) determine the...

Thanks, I got it!

double post...

[SOLVED] Length of Spring Homework Statement A load of weight 400 N is suspended from a spring and two cords that are attached to blocks of weights 3W and W as shown. Knowing that the constant of the spring is 800 N/m, determine (a) the value of W, (b) the unstretched length of the spring...