Recent content by jhayes25

Given is a 6' long 40 lb bar hung horizontally by a pin O at its end. It is released from its horizontal position and hits a stopper after reaching a 30 degree angle with the horizontal position at which it started. I am asked to find the value x for which the angular velocity is a maximum and...

So the wavelength equals velocity over frequency. Velocity equals 331+0.6*T (C) correct? So find the velocity and divide it by both frequencies and subtract the second from the first, then multiply by two, and that should give me the fundamental wavelength (lambda not)?

I'm not sure that I understand the relationship you are talking about. How do you relate the successive harmonics?

My question goes as follows: An open pipe in air is designed to produced 2 successive harmonics at 235 Hz and 275 Hz at 20 degrees Celsius. What is the fundamental frequency? What is the length of the pipe (m)? I'm not sure how to solve this problem, as I can't find the equation to...

My question goes as follows: An open pipe in air is designed to produced 2 successive harmonics at 235 Hz and 275 Hz at 20 degrees Celsius. What is the fundamental frequency? What is the length of the pipe (m)? I'm not sure how to solve this problem, as I can't find the equation to...

yes, haha thanks. I knew I would screw it up if i tried.

Ok. I have a definite integral of e^sqroot(x) dx from x=0 to x=1. I would use u=sqroot(x) and du=1/2*sqroot(x), but I'm confused what I would set v=?

Homework Statement Not real good with the easy text stuff yet so ill give it a shot. definite integral of (1/(1+t^2))dt from 0 to x^2 then find the interval for which the curve is concave upward. I totally forgot how to integrate problems like this. It is some sort of substitution I...

Alright, wow that is simple when you now the identities. Guess i should get to learning those lol thanks awvvu

roco, that is correct. Obviously a newb, I have no idea how you did that. I'm sure there are stickies somewhere that I need to read.

Hello all, I am new to these forums. I'm having trouble with a problem on homework. It seems simple but it is giving me problems. It is an indefinite integral: Integral of (Sin(2x))/(Sinx)dx Is there a way to use substitution? Help is appreciated.