<p>what’s the drum particle question?</p>
<p>are you sure the mass was .8 in the spring scale question? I chose it was 1, I don’t remember though.</p>
<p>There was another one about a weight scale in an elevator going up I think.</p>
<p>ya i thought i was definitely easier…easier concepts than usual</p>
<p>i thought the electric field one was “near a charged particle”</p>
<p>The drum particle, was you shoot a particle through a slit in the drum and it hits the darkened target a certain distance from the slit, what can you find from this information?</p>
<p>I put that there was still air resistance in still air =/ I mean, if it’s still then it’s not going to move away, it’s going to stay put and resist motion… right?</p>
<p>was that question 74? i think that’s one i missed. </p>
<p>about still air, i agree with you vivi, after all there is no friction on a surface until something is rubbed against it. in other words, once something starts to move it is affected by “still” air, since the air would no longer be still relative to the displacement of the object, it would act in the direction opposite to it, as air resistance.</p>
<p>guys (or girls) for the one about the spring, wasn’t the reading the same as the mass of the weights? I don’t really remember so could someone clarify? </p>
<p>Isn’t the curve about 11-12 wrong for 800??</p>
<p>According to Princeton Review’s 2007-2008 edition, around 60 raw score is an 800, so I’d feel safe with at most 10 questions wrong, which is still too much IMHO.</p>
<p>Yes, I’m pretty sure the reading on the spring was supposed to be the same as the weight of the mass (or whatever the question was asking for).</p>
<p>was that .8 or 1 kg?</p>