<p>Yea I got the nuclear charge answer choice.</p>
<p>For the thermo question for the two different paths, I got that the change in internal energy was the same for both.</p>
<p>You guys can continue the Consolidated List. I’m going out. </p>
<p>Make sure you don’t change something unless many people confirm it. And put a (**split) if you disagree.</p>
<p>I thought it was just the area under the curve. and path b had a larger area</p>
<p>Area under curve is work. The change in internal energy is the final minus initial, and the path taken to the final state doesn’t matter.</p>
<p>for the thermo it IS NOT the same… i think…
or am i stupid?
i thought because the work was different the change in internal was diff
ohh nooo</p>
<p>I thought different work just meant different amount of heat added.</p>
<p>ok i broke out the B REFERENCE TABLE
delta U = Q+W</p>
<p>The change in internal energy is independent of the path traveled. In this case, the answer is the same for both.</p>
<p>Efficiency is definitely 40%.</p>
<p>yeah charlotte is completely right
and so is jnrdo for the efficiency</p>
<p>wasnt the area under the Force vs time curve impulse? (impulse = F x time) and whatd u guys put for the beta particle total energy (or something) isnt equal to 0? i think i put more particles are emitted?</p>
<p>75 is wrong, it was asking about current induced not EMF, its B initial.
@ Born4Soccer
Yes it was.</p>
<p>I put impulse because force * time = impulse.</p>
<p>thats what i got but i wasnt completely sure… it was the only one that kinda made sense to me</p>
<p>When will we know the results?</p>
<p>haha. I hope i did good on this. I switched at the last minute from literature to physics. I took AP Physics C exams in May and didn’t study anymore. I used common sense for optical, fluid problems. I learned nuclear and thermodynamics stuff from AP chemistry.</p>
<p>how generous is the curve going to b? any guess?</p>
<p>That’s right, It asked for the current so R was necessary. B0 is not became EMF= d(B*A)/dt. Only change in B is needed.</p>
<p>I’m guessing a little more generous than usual because the section 1 questions were harder than most I’ve seen and much harder than the released test, plus all the idiots take it in June, so we get that bonus too.</p>
<p>“–relationship between mass and energy = E = mc^2 = straight line (B)
–relationship between freq. and energy = E=hf = straight line (B)”
Both can’t be B.
Relationship between mass and frequency started at the origin.
Relationship between freq and energy was e=hf-(work function)
It was the one that was shifted to the right because the y-int was lower.</p>