Recent content by nutster

Bingo. Sqrt(L^2+36)-L=(n*lambda)/2 1.319=Sqrt(L^2+36)-L; L=13! Thanks for the help.

Hello. I'm having some trouble on the last of my homework problems for this week. The problem has to do with destructive interference and is as follows: Suppose that the separation between speakers A and B is 6.00 m and the speakers are vibrating in phase. They are playing identical 130 Hz...

Sorry. The answer was correct. Apparently the system has started utilizing sig figs. More than welcome to kill this post. Thanks for looking if in fact you did!

How do, everyone. I'm 99% done with my HW set for this week and am stuck on this problem. Three resistors are connected in series across a battery. The value of each resistance and its maximum power rating are as follows: 5.0 Ohms and 19.5 W, 32.0 Ohms and 10.0 W, and 15.0 Ohms and 10.0 W...

I don't understand where we're going with EPE :rolleyes: Might you be able to provide equations to show what you mean? Thanks again

Here's the problem: Two particles each have a mass of 6.6x10^-3 kg. One has a charge of +5.0x10^-6 C, and the other has a charge of -5.0x10^-6 C. They are initially held at rest at a distance of 0.70 m apart. Both are then released and accelerate toward each other. How fast is each particle...

bump, please :)

Sorry, I was out of class for most of this week, so that doesn't make a lot of sense. Can you lay it out in equations?

Image: http://www.webassign.net/CJ/09_34.gif

Can someone help me make sense of this problem? Thanks. A race car, starting from rest, travels around a circular turn of radius 23.7 m. At a certain instant, the car is still accelerating, and its angular speed is 0.571 rad/s. At this time, the total acceleration (centripetal plus...

Sorry, blonde moment. OK, so the only force being applied is the tangential force of 58N...right? So, a=\frac{58N}{364kg}, or 0.159. Applying this value to a, and applying to the other equation, 0.159=1.2m\alpha;\alpha=0.1325...but that isn't the answer. What have I missed?

Sorry, trig physics.

Something without integrals, please :) It's trig calc.

Sorry, I'll give LaTeX a try. F_T=m\alpha_T, and \alpha_T=ra, so why doesn't F_T=mra? If you were to do this, you'd get... 58N=364kg*1.2m*a, right? That's .133, but it's wrong

More questions! A rotating door is made from four rectangular glass panes, as shown in the drawing. The mass of each pane is 91 kg. A person pushes on the outer edge of one pane with a force of F = 58 N that is directed perpendicular to the pane. Determine the magnitude of the door's angular...