<p>horrible-ness....a feeling of Horrrible-ness in the pit of my stomach....
ARGHHHH....
is -15 REALLY an 800 ??
and reichin dude...u freaked me out with those answers at the beginning of this thread. Kudos!</p>
<p>Poseur, you may be right (you're confusing me lol) but take a look at this graph:</p>
<p><a href="http://img.sparknotes.com/content/testprep/bookimgs/sat2/physics/0008/KEgraphs.gif%5B/url%5D">http://img.sparknotes.com/content/testprep/bookimgs/sat2/physics/0008/KEgraphs.gif</a>
(the one on the left)</p>
<p>KE is directly proportional to v^2 right?</p>
<p>so if you take sqrt v instead, it should be straight?</p>
<p>Poseur is right! sqrt KE is proportional to v but "sqrt v is not proportional to KE".
Specifically KE=1/2<em>m</em>v^2, which means that if we put x=v^2 that will become KE=1/2<em>m</em>x, which is a straight line :) That was the answer;)</p>
<p>Nifida, the graph I posted was KE vs v, which is obviously not a straight line. Stop confusing me :(</p>
<p>
<p>Liiike.</p>
<p>P varies directly as Q. P = kQ. To make a linear graph, you'd graph P vs Q.</p>
<p>...Replace Q with b^2.</p>
<p>????</p>
<p>PROFIT!
this is my sole proof TAKE IT IT'S ALL I HAVE</p>
<p>I thought it was like the KE formula when i read the problem, it may be P=kQ though.</p>
<p>I meannn it wasn't about kinetic energy or anything; it was just about linearizing the data if a varies directly as b^2.</p>
<p>R-DNA , -15 is most likely an 800. Getting 25-30 wrong puts you at 700, it's a VERY generous curve.</p>
<p>Physics is not my major and i have no time to study it. >.< I took the risk haha. But i did sth really stupid that i should have omitted the questions i dun know. But , i did not do that/ >.< I filled randomly , oh my god. >.<</p>
<p>which book do think worked the best for the DEC physics? I am currently using Sparknotes, taking in Jan, how u think of the book?</p>
<p>I used Princeton Review and thought it was great.</p>
<p>what's 9 omits and 5-8 wrong?</p>
<p>how about Sparknotes for the DEC physics?</p>
<p>@laure327: 750-800 depending on the curve.</p>
<p>I've never taken past physics SAT2's, but I thought this one was quite difficult. Generous curve? most likely. 9 Omits+ 5 wrong will prob put you at high 700's- and Hey, 800 is a possibility. I hope.</p>
<p>Sparknotes is very useful. I remember that there exits 1 questions on Sparknotes appeared in Dec.</p>