<p>oh yea definitely USD, those were such Quirky questions (no pun intended)</p>
<p>What is this USD you all speak of?</p>
<p>Up down strange quark and then it was like give a neutral baryon w/ strangeness 1</p>
<p>the question with the quarks it needed a charge of 0 mayb? the options were like UUD, USD, UDD, USS, DSS, stuff liekt hat</p>
<p>I it weird that I have no idea what that question was asking…? I skipped it.</p>
<p>why did u guys put sqrt (2h/g) x v, and not just h?</p>
<p>bc x = vt and h = 1/2<em>g</em>t^2 so t = sqrt(2h/g) and x = v*sqrt(2h/g)</p>
<p>damn, ur right, got that wrong</p>
<p>Well I said that the elevator was trajectory upwards and then down since it said describe the trajectory in relation to the building.</p>
<p>@skorpius, that is correct.</p>
<p>What did you guys get for the one with point p with the oscillating waves with same wavelength but different distance? I said the amplitude would increase…is there anything that wouldn’t make it destructive interference?</p>
<p>I left it blank.</p>
<p>Also back to the airplane one, it asked what the net force was . . . how were the choices worded?</p>
<p>@Abrayo, do you think the airplane q. was one of the graph questions in Part A?</p>
<p>hmm i don’t remember, but i still know it was 0.</p>
<p>Also, for the oscillating waves I also said amplitude increases (superposition (in phase)) but I could be wrong :x</p>
<p>[Making</a> Sounds](<a href=“http://www.antonine-education.co.uk/New_items/MUS/Making_Sounds.htm]Making”>http://www.antonine-education.co.uk/New_items/MUS/Making_Sounds.htm)</p>
<p>ctrl + f the term superposition</p>
<p>the airplane was just 0. I don’t think it matters how the choices were worded. The fact is that it wasn’t accelerating.</p>
<p>I’m just asking about the wording because I’m trying to remember if I saw it.
If it was a graph one, then it was the one with the zero slope right? (but not y=0, it was just parallel to the x-axis?)
Hopefully you’re right, skepticidal, and it was one of the graphs!</p>
<p>oh ok sorry about that. I don’t think it was a graph. that much I know for certain cause I laughed at that question.</p>
<p>mm great.
So would you happen to remember approx. what number question it was, or what the answer choices were?
Or even what other questions were on the same page?</p>
<p>Do you remember the question about the two sources s1, and s2, emitting wavefronts at a point p?</p>
<p>I put decreasing on either side of P.</p>