<p>I went through the past 2 years (2011, 2007) where this exact same question came, and the beginning of the universe answer consistently showed up each time whereas the black hole one didn’t afaik.</p>
<p>I believe that the quasars initially formed from black holes but at the current time they are just peacefully dwindling down, which is why it said that it was dim (the action has ended, it is dying now). The black hole would be while it was bright from what I understand.</p>
<p>I know nothing about quasars, but how can you conclude anything about black holes based on the 5 billion light years? Didn’t the question ask what can you conclude based soley on that info?</p>
<p>“Quasars are the oldest known astronomical objects and can thus provide important information on the state of the early Universe. They are thought to exist at the centres of giant host galaxies and may be powered by supermassive black holes, which would explain why they are the brightest objects in the sky.”</p>
<p><a href=“First quasars shed light on the early universe – Physics World”>http://physicsworld.com/cws/article/news/2003/jan/23/first-quasars-shed-light-on-the-early-universe</a></p>
<p>i think it’s the beginning of the universe still. I’m not an expert on the stuff but i think when something is billions of light years away, the distance between the earth and the quasar is ‘weird’ cause of the expansion of the universe. </p>
<p>And I agree with Cali, I see what you just posted penta, but i don’t see how we could come to that conclusion unless we knew it beforehand </p>
<p>did anyone get like a lot of As in a row…</p>
<p>I got a lot of D’s in a row…</p>
<p>@hawkace ughh shitt. i got like so many As in a row in like # 30-40</p>
<p>From 30-40, I believe that I got multiple choice but in the beginning, I got a lot of D’s. </p>
<p>i never pay attention to how many a’s or d’s i get that always psychs you out unnecessarily. Also, can someone answer my question as to whether PR or Barrons had accurate practice tests to the real deal</p>
<p>@sheeplionwut i heardthat pr is better than barrons</p>
<p>@SheepLionWut I like PR better, because it doesn’t go over superfluous material, but that’s just my opinion. </p>
<p>Would you say its practice tests were harder or easier than the thing we took today?</p>
<p>I would say this test was much harder than practice tests and curve should be substantially better, any agreement? Btw Did we ever come to a consensus of the boat and waves question?</p>
<p>the one that said no effect © I believe</p>
<p>which practice taste did you use Joppa? and apparently the boat question was speed stays the same</p>
<p>Practice test*</p>
<p>@joppaa I certainly hope so…I have a raw score of 61 right now and I’m not sure if I should cancel my score (< 800) since I have 5s on my AP Physics exams and USAPhO semifinalist status and it would probably look really inconsistent…banking on a 59/75 curve like the one in the CB blue book.</p>
<p>@recyclingbin I don’t understand why people want to cancel your scores. Colleges don’t look at all of your SAT subject tests scores. It would be more logical to see your terrible score and not sending it to colleges then, canceling it and never knowing whether you got a good score or not. </p>
<p>@Hawkace isn’t the question ordering different per test booklet? (i’m assuming that’s what the “test code” forms are for)</p>