<p>^^ Momentum is NOT always conserved -_-</p>
<p>of course it’s not
that’s why there is no conservation of momentum in a closed system.</p>
<p>What are you talking about? Sorry, I’m really confused.
Momentum is ** always ** conserved in a closed system.
However, it is not necessarily conserved in any other case.</p>
<p>It seems like you’re telling me that I’m wrong, and then indirectly saying that you are wrong.</p>
<p>lol it’s called sarcasm
which is why momentum was conserved in that question</p>
<p>pigs you have no clue what you’re talking about, Data is definitely correct</p>
<p>Sorry, but I don’t believe that the system was closed. I really don’t understand what you are trying to prove.</p>
<p>it was a closed system</p>
<p>-_- what was the other answer then? huh?</p>
<p>Did they explicitly state that? I really don’t remember that. Considering that one of the answer choices dealt with external forces. But if it was closed, you are correct. Sorry, I don’t remember my answers from the SAT II’s at all.</p>
<p>No reason to get worked up about it, I’m just wondering.</p>
<p>yeah sorry i’m kinda pmsing right now</p>
<p>It’s all good =) Anyways I don’t really care if I misread the question and got it wrong, considering how generous the Physics curve is :D</p>
<p>one of the choices was ‘momentum is always conserved’
the other one was that momentum changes if there is an external force applied</p>
<p>Yeah, I definitely recall that, that is why I immediately threw out the former answer choice.</p>
<p>Momentum is obviously not conserved unless external force is 0 <_< Don’t get the prob with that. Is momentum was always conserved nothing would ever accelerate!</p>
<p>^ I agree with gary. The answer was that momentum is conserved unless external forces are acting on the system.</p>
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<p>I’m not denying that there was a flux. But for an induced emf, there has to be a change in flux. The flux stayed constant.</p>
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<p>yup, that’s what I put as well</p>
<p>[Motional</a> Emf](<a href=“http://farside.ph.utexas.edu/teaching/316/lectures/node88.html]Motional”>Motional Emf)</p>
<p>pretty much the same problem</p>
<p>even though on the test, the area didn’t change,it had velocity and when something moves it induces a current</p>
<p>and that question was specifically to test your knowledge on the right hand rule! the current flowed counterclockwise</p>
<p>“I put they release dimmer light because it takes so long for us to receive the light” <—that was the right answer for quasars, this makes sense because this is the concept of red shifting, and quasars red shift</p>
<p>and a particle accelerator focuses the electrons. i did an online lab with this!!
“A particle accelerator (or atom smasher)[1] is a device that uses electric fields to propel electrically-charged particles to high speeds and to contain them in well-defined beams.” <–internet</p>
<p>What do you guys think the curve will be?</p>
<p>Pigs, that example involves a change of magnetic flux – the area of the loop increases. Horizontal movement of the loop has no effect on the flux; you have to rotate the loop or change its size.</p>
<p>Velocity through a field creates a force on a charged particle, but not necessarily a current.</p>