<p>Why is B the greatest force, shouldn’t both choices from x and y be A?</p>
<p>Yeah, it was mg/k - i better have put that</p>
<p>It wasn’t A because it was halfway down the planet, so a = 1/2g</p>
<p>anyone remember 10m/s2 for astronaut lifting object off ground</p>
<p>The force is exerted from the center so shouldn’t A be correct because it’s all as close to center?</p>
<p>but as you go into the planet, the less mass there is pulling you in since all the mass above you is pulling you in the other direction</p>
<p>The mass is in the center, distance counts from the center?</p>
<p>anyone get 15m/s for velocity after dropping for 1.5s
I got 5m for focal length of converging lens
Path A for reflecting light
The bath bending down for refracting light</p>
<p>Velocity after 1.5s: (0.5)(9.81)(1.5)^2 = 11m/s
Focal length: 5m</p>
<p>we might be thinking of different questions. Thats also the equation for distance.
horizontal component of F?
reinforcement and cancellation depending?
reflected wave is inverted but same in other ways.</p>
<p>Is anyone here? Did anyone take this test?</p>
<p>Did everyone get for Einstein’s postules 2 & 3. And for what was true before Einstein was just 1?</p>
<p>I put II and III for einstein postulates. I put I and II for known before, but I could easily be wrong. </p>
<p>What did people put for which arrow is slowest speed of ball off building hitting the ground. I put C (horizontal arrow)</p>
<p>any guesses on the 800 benchmark? I left three blank but probably got like 10 wrong otherwise:P</p>
<p>i put C also/</p>
<p>Anyone know how the physics tests have been curved historically? How many can you miss and still get an 800?</p>
<p>Well if this is in any way accurate, then I am quite relieved:
[SparkNotes:</a> SAT Physics: SAT II Physics Score Conversion Table](<a href=“SparkNotes: Today's Most Popular Study Guides”>SparkNotes: Today's Most Popular Study Guides)</p>
<p>According to that chart, getting 50 out of 75 correct on the physics corresponds to a score of 720. And getting a 66 (leaving 9 blank) will get you an 800. Seems like a pretty easy curve.</p>