Recent content by temaire

I will be installing a two-stage pressure regulator on the gas cylinder and the outlet pressure will be below 125 psig. However, I don't think this addresses the issue of some of the compounds in the cylinder remaining in liquid phase. I need to make sure that there isn't any liquid to begin with.

I'm currently in the process of selecting gas mixtures to calibrate a gas chromatograph. One of the gas mixtures I'm interested in has the following composition by percent volume: methane (CH4): 95% carbon dioxide (CO2): 1% butane (C4H10): 1% acetylene (C2H2): 1% nitrogen (N2): 2% The gas...

Thanks for the response. I made the assumption that the naps could be broken up into multiple segments and that the total nap times were 2 hours or 1 hour. This avoids the problem of the employee taking an hour long nap right before his shift ends.

Homework Statement An employee goes to work from 9 am to 4 pm. He takes a nap for an average of 2 hours if he starts napping before 1 pm and naps for an average of 1 hours if he starts napping after 1 pm. His boss randomly checks up on him once during his shift. If his boss finds him napping...

Thanks for the feedback Jim, I really appreciate your help. In step 10, the area is in m^2, the density is in gm/cm^3, but I divide it by a conversion factor to get gm/m^3, and the specific heat is in J/gm.K. All units cancel out except for K. I'm from Canada, so we were taught everything in...

I think I understand the approach you're suggesting, and I've tried calculating the change in temperature as follows: 1. I define the actual resistance based on the temperature coefficient of resistance and the standard resistance at 20oC. \Delta R = \alpha R_s \Delta T R - R_s = \alpha R_s...

I plan on using a 1 ft long, 0.005" diameter platinum wire as part of an electrode. The wire will be bare but will be inside a hollow plastic tube that has an inner diameter of 0.08". It needs to be able to carry a maximum of 1 mA for a length of 10 minutes, while not exceeding 60oC. I'm not...

E = \frac{2mg}{q} Thanks for the help.

By drawing a FBD for the first case, I was able to determine the force due to air friction is equal to force due to gravity. For the second FBD, I was able to determine that the force due to the electric field is equal to the sum of the forces due to air friction and gravity. Therefore, the...

How do I find the electric field between the plates? I don't have the charge of the plates.

Homework Statement The Attempt at a Solution All I need to know is the acceleration acting on the particle after the potential is applied. v_f^2 = v_i^2 + 2ad (1*10^{-5})^2 = -(1*10^{-5})^2 + 2a(1*10^{-3}) a = 1*10^{-7} m/s2 Is this the correct approach to finding acceleration?

A large, thin, insulating slab 2 m x 2 m x 5 mm has a charge of 2 x 10^{-10} C distributed uniformly throughout its volume. determine the electric field at observation point P, which is located within the slab, beneath its centre, 0.5 mm from the top face. I started off by making two...

Isn't that still always going to be zero at all n, where n is an integer and can't equal +-1, after integrating?

I evaluated the integral you mentioned after expressing both the sin and cos in exponential form as follows: Isn't this still periodic in \pi?

Homework Statement Homework Equations General solution: Fourier series: where r_{1}=a, r_{2}=b, f_{1}(\theta)=sin(\theta), and f_{2}(\theta)=2sin(\theta)cos(\theta). The Attempt at a Solution By evaluating the Fourier series shown above, I determined that...