our teacher gave us this one in class and its not one of the "regular" ones we do so i same not sure how to set it up w/o getting messy numbers.
2 loud speakers 2.5m apart and a reciever 3m from one speaker and 3.5m from the other.
a. find the lowest frequency where the receiver is a node...
Waves with wavelength 2m pass through a hole in a barrier 10m wide. Compute the angular width of the central maximum.
I'm not sure what I am finding here. Is it the angel between the central maximum and the 1st nodal line?...If so am I treating this like a 2 point source problem?
Any help...
sequence...opps yea......i did find the limit to get my answer using L' Hopital's rule...i was thinking this was the "nth term test" which cannot show convergence...only divergence...but then i realized this is a sequence and that test was for a series.
This seems like a simple problem...almost embarassed about it, but I can't figure it out:
Determine if the following sequence converges or diverges (2n-1)/(3n^2 +1), n= 1,2,3,... If the sequence converges, find its limit.
I think the series converges to 0...am i right? :confused:
I am having difficulty grasping what to do for this problem:
Two point sources located (0, +/- 2.5(lambda)) are generating waves in phase. Compute the distance from the x-axis to the first nodal line at
x=50(lambda)
I'm not sure what equations to use. My physics instructor is terrible...
integral of 1/(cscx-1)
i can't think of any trig subs or anything...natural log prob? ;)...i udnno I'm truly clueless. all i need is a hint or more if u like ;) :wink:
also, am i using integrals for this prob:
Compute the average value of f(x)=x/(x+3) over the interval...
Not sure if there is and answer
\lim_{n\rightarrow \o}\frac{1}{x}^x
i suck at latexing lol...liimit approaching zero from the right i think...and its (1/x)^x...the quantity to the x power.
...i don't think i can use L'Hopitals rule...so how do i solve it?
I spotted comet Machholz tonight in my backyard (basically a full moon) with my small scope (3.5" Refractor)...mainly b/c i didn't feel like bringing out the big boy. Is is me or i did not see much of a tail (really not a tail at all)...just the nucleus and the coma around it??...magnification...
http://hyperphysics.phy-astr.gsu.edu/hbase/cf.html#cf
i like this site's stuff on this^^^
Anyways...
Fnet=Fc-Ff ...assuming static friction :)...i don't know y u need the height above ground unless its like a banked track or something
hmm...which equations did u use? for the spring potential did u use:
Us=.5kx^2
did u use Ug=mgh grav. potential?
this may be just b/c i don't understand ur table...y is the spring unstretched value lower than ur starting point?