June 2009 - Physics

<p>oh well. :/</p>

<p>lets see…a transformer?
transverse waves?
waves that can interfere?
…</p>

<p>Oh yeah, what was the answer to the transformer question?</p>

<p>What do you guys think the curve will be for an 800?</p>

<p>I believe the microscope question’s answer was the mirrors choice… forgot what it was exactly though</p>

<p>for the question about the beams of light a full wavelength apart, it forms a bright fringe, but not necessarily the brightest fringe. you don’t know that it is the central maximum.</p>

<p>What about the question with the two wavelengths in phase?</p>

<p>^yeah, that’s the one i was talking about
they are in phase, but a whole wavelength apart, which makes the in phase and constructively interfere</p>

<p>danggit i missed that stupid plus minus .05 question
and i chose particle accelerator lol (no idea, random guess)
and i missed that qarus thingy</p>

<p>what aboput the ones with waves on string, sound wave, light wave…</p>

<p>what about the question that has to do with finding either focal point or location of the image produced by the convex lens</p>

<p>all 3 waves can experience interference</p>

<p>

</p>

<p>I forgot the numbers, but you just use the mirror equation: 1/di + 1/do = 1/f</p>

<p>k got that…which were transverse? and i forgot the other part</p>

<p>i know i got the distance/focal one right i just dont remeber answer…i think it was
1/10=1/15+1/x</p>

<p>3/30-2/30=1/x</p>

<p>1/30=1/x</p>

<p>x=30.</p>

<p>blah it’s SO hard to discuss physics =/
not like history where you can just retype the answers lol</p>

<p>and it’s hard to remember numbers</p>

<p>haha yeah @ pigs<em>at</em>sea’s comment… and also, there’s not enough people here -_-</p>

<p>that was what i got. cannot promise that was the answer though
what about the questions concerning transformer and transverse wave.
(I don’t recall any question about transverse wave)</p>

<p>I’m here! And yea i took world history too, SO MUCH EASIER TO DISCUSS</p>

<p>and the stuff we remember are so unspecific lol
it’s like 2 different versions of a problem depending on how people interpreted and solved it</p>

<p>=/ dang i’m gonna just wait until 6/25!! yay then ap scores after that
i love waiting…NOT</p>

<p>the transformer answer was something about changing emf 100% sure because the equation for a transformer is emfp/emfs=turnsp/turnss</p>

<p>is 2-5 wrong, no blank an 800?</p>

<p>@Buddy: Yeah.</p>

<p>That one with the square loop of wire moving through a magnetic field… clockwise dc current? or was it counterclockwise? I was kinda switching between those two answers until I finally settled on clockwise</p>

<p>not sure what the question was, but if the loop stays in the magnetic field and did not turn, there is no change in magnetic influx and therefore no current is going to be generated. (not trying to dispute your opinion since i hardly remember the question, but if it said ‘through a magnetic field’ there is no change in magnetic field</p>

<p>I had the same thing; no current.</p>