<p>@mbomb99 superconductivity is at low temperatures, but anyways it was E the efficiency of electronic devices, that work at low temps.</p>
<p>I got that wrong. Dang I feel like I got below 700. It was bad. What did you guys get on the last question about doppler effect?</p>
<p>Wait for the superconductivity, why is it E? I said the furnace thing. I wasn’t really sure (narrowed it down to those two).</p>
<p>What was the fiber optic cable one? I forgot what I put but I’m hoping I’ll recognize it if someone puts it…</p>
<p>Asteroid question is definitely from asteroid perspective. I almost put B :P</p>
<p>I got 5 m/s and .1s.</p>
<p>I omitted 3ish. How many did you guys omit?</p>
<p>If i get anything over 700 I will be so happy considering I haven’t taken physics B. Smh I had to learn all that content on my own. I think I omitted like 7 questions. I really wish I circled asteroid. I was down to that answer but I was second guessing myself.</p>
<p>The question about the 2 speakers and the woman walk vertically upwarxds. it was the last question about doppler effect. what did you guys get?</p>
<p>@Reda1234 - Oh yay ! 
</p>
<p>On the whole, it was really bad for me. I omitted A LOT of questions. I just wasn’t prepared enough I guess. I don’t think I even got time to read all the questions properly.</p>
<p>@mbomb99 - I skipped that 
I couldn’t even read it because I didn’t have time :/</p>
<p>@mbomb99 this was a question about superposition and I quote " the waves superimpose" it was not about doppler effect.</p>
<p>and I was in the same situation as you, the physics and math level 2 material were all completely new to me, so I had to self-study it all in 10 days!!! I don’t know how in the world I managed :)</p>
<p>I thought that superconductor was the furnace because it didn’t make much sense to me why you’d use a superconductor that works at high temperatures on low temp electronics- we already have that. Therefore, the furnace ( being extremely hot) fit the best.</p>
<p>The question about the speakers and the woman walking is a variation of young’s double slit experiment. The waves alternate between constructive and destructive interference so that answer is that the sound will decrease then increase etc…But the general trend of volume will go down because of the inverse squaer law associated with intensity. The one problem I have with it is that it doesn’t denote the downward trend of volume.</p>
<p>What did you guys get for the piston question? The one woth heat and pistons</p>
<p>@tips1660
Superconductivity changes electrical conductivity not thermal conductivity. A superconductor that is further from absolute zero would be valuable to low temp electronics b/c it would have practical applications.</p>
<p>Piston in. Heat in. I think that was the answer. cause PV=nRT</p>
<p>I also got Piston in, heat in. Pressure and temperature increases. </p>
<p>I thought this test was fairly hard. Hopefully it’s not just me?</p>
<p>[High-temperature</a> superconductivity - Wikipedia, the free encyclopedia](<a href=“http://en.m.wikipedia.org/wiki/High-temperature_superconductivity]High-temperature”>High-temperature superconductivity - Wikipedia)
Maybe I’m reading this wrong, but wouldn’t you want to have a superconductor that can operate at extremely high temperatures at a furnace rather than low temp electronics because it wouldn’t even work operate as a superconductor at low temps?</p>
<p>Nvm I think I’m wrong. I also got piston in and heat in</p>
<p>The question said “highce you highER temperature superconductors” And the source you cited shows a “high” temperature to be -135 Celsius. The temperature is unusually high compared with other values at which materials become superconductors.</p>
<p>@henrygo I noticed that, it doesn’t denote the downward trend of the volume but frankly an answer that denotes just that volume is deceasing is definitely wrong. So I think the only solution is alternating.</p>
<p>I thought the wording was slightly weird for the superconductor one. I chose the electronics one because I didn’t even know that superconductors could be used in furnaces.</p>
<p>@itskanksha I couldn’t figure out alot of them i got alot wrong with alot omitted. i’m in the same boat dude, so don’t feel bad.</p>
<p>@mbomb99 - aw yeah, we’ll do better next time ^^</p>