Recent content by Mirth

Thank you a BUNCH, that cleared things up for me so much and I got the right answers. Thanks!

So I'm taking Physics II, and I'm running into some basic algebra problems that are just going right past me, so I ask for assistance in brushing up my memory. Here is an example problem, and it's answers, with 3 unknowns with 3 equations: A + B = C 0.1A + 12 = 0.01B + 14 0.01B +...

Homework Statement A particle has a mass of m = 1.8*10^-5 kg and a charge of q = +3.25*10^-5 C. It is released from point A with an initial speed of v'A (v of A) = 3.5 m/sec and accelerates until it reaches point B. The charged particle moves along a straight line and does not rotate. The...

Now I'm confused again :( I thought we determined the wavelength was half of six, being 3? Edit: Ah. I think it'd be wavelength = 2.5m/(6/2) = 0.83?

Thanks a bunch, I was definitely over-thinking that one. :D So, for (b), it'd simply be : v = 120Hz * 3 = 360 m/s ?

Oooh. I hope I get on base with this, but if I recall from the lecture correctly, one loop is half a wavelength. I have six loops, so it'd be 3 wavelengths?

Ack, you're right, I didn't catch that. Thanks! So... even if I didn't goof up on that, my thought process is still wrong it seems, if you're hinting at me using the diagram. Hmmm... I really shouldn't have waited so many years to take Physics II, as there is probably a formula from Physics I...

Hey guys and girls, I'm having a hard time trying to start this problem. I think I have an idea of what to do to start it, but I'd like someone to verify it for me: Homework Statement A mass, m = 5.50kg hangs from a cord around a light pulley. The distance between point P and the pulley...

Ah, I apologize, didn't know the first equation that they gave was really relevant in solving the problem. But yeah, I took about a 6 year break from college, and it's been about 8 years since I've taken a dedicated math course, so I've mostly just forgot how to do this kind of math. Most of...

Hello all. I feel like such a retard, but there's an example problem in my book with the answer, and I just don't know how they are getting the answer. I suppose it's due to my lack of mathematical skills. I was wondering if someone could guide me on how they got the answer...

I kinda give up on the first one, heh... Can someone tell me if I have #2 right?: Answer: \frac {1 - e^-^2^x}{e^-^x + e^-^2^x}

Not sure of any rules by name... I'm going to have to research more examples, I'm so rusty in math that I am unsure...

I'm really retarded at math, ugh... Hehe. So I have \frac {3e^3^x}{1/x} ... Pretty sure I'm lost on what to do from there. :(

Hrm, I'm feeling a bit retarded so bear with me, hehe. So, \frac {1}{x}?

Hey all, I'm really having a hard time figuring out a couple of problems in which I have to differentiate: 1: \frac{e^3^x}{\ln x} I just don't know how to put it together... I know that e^3^x is 3e^3^x, and I know that you can't different \ln x, so I don't know what to do from there...