Recent content by triden

Think of a transformer being a large bundle of wrapped wires. What normally leads to a power factor in a circuit?

If I had water at 180 degrees and dropped the temperature to 160 degrees over a heat exchanger, would I have the same BTU output as if I had water at 100 degrees and dropped the temp to 80 degrees? Delta T is 20 degrees for both situations. I know if we were talking about Ke related to mass and...

Millions!

The EROI (Energy return on investment) is very small with renewable energy at its current state. Fossil fuels and coal have the upper hand as they produce A LOT of energy compared to what it takes to get it. Investors want the most leverage from their investments, so its going to be hard to...

It gives you an idea of the magnitude of a signal relative to another signal. Say you drop 2 rocks with accelerometers on them, you can calculate the energy of the signals and then compare relative magnitudes to see which had more impact.

The 32 volts you measure could be a phantom voltage on the line. This happens a lot in household AC circuits when you use a high impedance volt meter. Electricians have special probes with a load resistance in them to get rid of any phantom voltage. I've personally seen phantom voltages over...

I am in the electronics industry and at work I am into some sort of C variant almost everyday. Programming is very useful as you can quickly write up apps to help you solve problems - I do it all the time. C is a good language to work towards as almost every microcontroller can be programmed...

For first timers I always recommend and Arduino. The development software is free and you can have a working project that actually does something in less than 10 minutes. If you want to get into something more advanced, I recommend the Atmel avr suite of microcontrollers since the development...

I got it :) Thx anyhow! Little bit of patience and practice pays off

Ok, I know I am on the right track. I have tried a couple things, but didn';t quite get it. I guess my problem is relating V- to V+. I want to think that V- = V+ = 0, but I don't think that's right. I know the answer (it is at the top of the sheet). Here is what I have so far now.

Homework Statement I need help finding the transfer function for the attached image. Homework EquationsThe Attempt at a Solution I combined the 1/6F cap and the 1 ohm resistor into a single impedence. I know the AV of the opamp is -0.5/(6s+1). After that I am stumped. Is there a name of...

oops, yeah should have caught that. y = -(3/2)x + 3 Got an answer of 3 after a bit of algebra...seems about right! Thanks a lot for your help, I appreciate it.

Ah...ok, I think I get it now. Just to confirm: Since there is now a triangle in the x-y plane with a slope of (-3/2)x for the hypotenuse, my dy limits would be 0 to (-3/2)x and then my dx limits would be 0 to 2. Chris

Homework Statement Evaluate \underbrace{\int\int\int}_{Q}(1-x) dzdydx Where Q is the solid that lies in the first octant and below the plane: 3x + 2y + z = 6 The Attempt at a Solution I guess my main problem is finding the integral limits. For dz, I arranged the equation of the...

Can you put a timer on it? Set it to turn off on Friday at 5 and turn on when Monday rolls around.