<p>Took it in Mongolia. Part A was harder than I expected. Overall, the test was not that hard, but I may be wrong.
Good luck to everybody who is taking it today.
If you took it, share your experience, please.
Thank you</p>
<p>@BestoftheBest I think it was not “the concept of inertia”</p>
<p>@BestofTheBest according to "<a href="http://www.physicsclassroom.com/“>http://www.physicsclassroom.com/</a>”, “Galileo and the Concept of Inertia
Galileo, a premier scientist in the seventeenth century, developed the concept of inertia. Galileo reasoned that moving objects eventually stop because of a force called friction. In experiments using a pair of inclined planes facing each other, Galileo observed that a ball would roll down one plane and up the opposite plane to approximately the same height. If smoother planes were used, the ball would roll up the opposite plane even closer to the original height. Galileo reasoned that any difference between initial and final heights was due to the presence of friction. Galileo postulated that if friction could be entirely eliminated, then the ball would reach exactly the same height.”</p>
<p>I chose expansion of the universe. That was the best of the best answer at least for me. </p>
<p>Physics was horrible for me. I never knew you should do SAT at the speed of light, but fortunately distance always constricts at the direction of motion so even at the speed of the light this asteroids of a test remains the same length.</p>
<p>no, B was the longest one
formula: Lroot 1- v^2/c^2
B had the smallest observed velocity and therefore the largest value in the root, and in turn the largest length (special relativity)</p>
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<p>No it was or can be that the distance measured by the fellow on the asteroid would be the greatest. Length can only constrict AFAIK</p>
<p>CredonsInMonDeo is right</p>
<p>I thought it was hard</p>
<p>Guys how did you answer these questions:</p>
<p>a bar was moving to the right on rails what was the direction of the current?
and the question about how much time does the force act I think it was question 61 or something. and what was the speed of the object that was previously not in motion?</p>
<p>yea, it was E. According to Lentz’s law you need the direction of the magnetic flux that is moving first in order to find the direction of the induced current
Also, for the force question you had to find the momentum first and then divide by the force they provided</p>
<p>@ Reda Did anyone get 5m/s and 0.1s?</p>
<p>No, it was the asteroid because that’s the L(0) in the equation. You can’t get bigger than that.</p>
<p>That’s what I got, Hopefully we’re both correct :)</p>
<p>@FILBsin yea i got 5 m/s and .1s
and @everyone else oops i didn’t notice that the asteroid was an option. darn</p>
<p>what did you guys get for the 2 speakerphone questions?</p>
<p>@sgtGutter I was surprised that it was the final question , some questions were just harder, the answer was alternating.</p>
<p>I thought the length was longest for the person on the Asteroid? :$</p>
<p>And for the force question, I do remember getting 0.1s :D</p>
<p>@ itskansha , you are correct about the asteroid question. according to relative length the guy on the asteroid should be the one who sees the asteroid as the longest. whenever the speed increases the asteroid is viewed as shorter.</p>
<p>What did you guys get for the superconductor that can be heates at high temperatures?</p>
<p>Man i knew it was the asteriod but then i thought that if the speed spaceship .6c saw the asteriod going at .6c because of their relativity.</p>