<p>n2> n1. less velocity. n1 needs to be greater in context of snells law as well. </p>
<p>2 refers to the material. 1 refers to air.</p>
<p>@Dragon123 i though through medium 2 it had a small angle than medium 1 from the normal so it had a bigger index. So n2>n1. They velocity is inversely relates to index so v1>v2. But i completely forgot that frequency doesnt change. Dang. I was so close. I remember studying that too ggrrrr, pionts pionts pionts.</p>
<p>@dragon123… How could you tell the light was bending away from the normal? to me it looked like it was bending toward the normal…</p>
<p>@dragon i assume you mean n2 > n1</p>
<p>Oh crap. I did so fast so maybe I didn’t see it :(. -2 for me</p>
<p>normal is a vertical line. the y axis</p>
<p>Yeah. I know. But I remember the angle in the shaded region was larger ( the angle above the x-axis). So i thought that region was n2. I think I made a stupid mistake</p>
<p>@dragon123</p>
<p>Was the problem not like this, but rotated 90 degrees counterclockwise?</p>
<p><a href=“https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcTxNzMN5oG2FDneOFcXZ8NFGgLHtqTy0acfoSCgCh2r9EAZdzjq[/url]”>https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcTxNzMN5oG2FDneOFcXZ8NFGgLHtqTy0acfoSCgCh2r9EAZdzjq</a></p>
<p>I said</p>
<p>vA > vB
nA < nB</p>
<p>It said what would raise the temperature. Pulling in (decreasing volume) or out(increasing volume) with the piston pump (along with what is the change in internal system but that part was easy. I was confused because if you increase the volume (p(2v)=nrt) you increase temperature, but if you decrease volume, youre adding more pressure to the system ((2p)v=nrt). I was so confused. It was d or e. I was wasting too much time so i just filled one in and moved along.</p>
<p>@mbomb: Ok. I remember the question. I chose E . Pull in and adding heat</p>
<p>Yeah it was just like that. @Dragon123.</p>
<p>What did you guys say on the one with gravity on a planet with earth’s mass but double radius?</p>
<p>@Filbsin G/4.</p>
<p>@Dragon123 how is it pulling in (decreasing volume) adding more temperature?</p>
<p>How big are the physics curves? I used a sparknotes scale and it seemed like it wasnt like the same curve as on the actual test. Also what would 7 omitted with 5 wrong get?</p>
<p>@Dragon123 thats right for index refraction and velocity</p>
<p>What was the direction of the force on the charge when the wire became positively charged?</p>
<p>Which question was it</p>
<p>It was a wire drawn like a vertical line and a positively charged particle to the right of it.</p>
<p>I believe i said to the right. I know the question about changing the particle to another wire would make it an inward force.</p>