<p>The bird appears higher. I think it was E or something. The light bends towards normal as it enters water. Then extend the refracted ray out of the water to get appeared position of the bird</p>
<p>there was a roman-numeral question concerning a ball that slides down a frictional half a circle ramp and one of the numerals was that the potential energy does not decrease or sumthing. i forgot the questions…</p>
<p>I put capacitor for charge storing.</p>
<p>About the ball down the curved ramp, what were the options?</p>
<p>One asked what decreased and one asked what increased.</p>
<p>I said that potential energy decreased (because KE increased)… Can’t remember the other options.</p>
<p>The force of the track on the ball increases as it slides down the track.</p>
<p>For the circuit question, the EMF through the 2ohm resistor was 3V right?</p>
<p>can anyone sum up the three ansers to the velocity vs time graphs at the beginning of the test?</p>
<p>Oh yeah, for the random fractal question. Was it insect?</p>
<p>and the one with the bird, was lower than it’s actual height, but sitll above the water?</p>
<p>^^^
I put that, but apparently its higher than its actual height.</p>
<p>how it that possible though? i definitely thought it was lower</p>
<p>For the fractal question I put cracks in mud… They just seem less mathematical to me (haha pretty much a guess, but it came down to an insect and cracks in mud).</p>
<p>EDIT: I put lower as well. Still trying to understand how it’s higher…</p>
<p>were the three velocity graphs 1. starting at 0,0 with constant increase 2. starting below 0,0 on the y-axis and staying below the whole time 3. the graph with the smallest slope to find the smallest acc?</p>
<p>would the bird be higher or lower? idk i think maybe i put higher because i remember something that objects are closer than they appear but no clue if that applies</p>
<p>Dam you’re right. I messed up the test so bad…</p>
<p>the bird would be lower because the ray going from water to air (more dense to less dense) will be refracted away from the normal. Which would make a smaller angle with water.</p>
<p>Hmm can’t remember the questions, but I put.</p>
<p>Force acting in opposite direction to velocity - velocity starts above the x-axis and slopes downwards (that way acceleration is negative and velocity is positive).</p>
<p>I put the same one for smallest acceleration (smallest gradient).</p>
<p>Can’t remember the other one. What did it ask for?</p>
<p>wait so the bird is further away? why?</p>
<p>there were three velocity time ones at the beginning
for the first one i put the one that started at (0,0)
for the other two, i put the same answer, which was the one that started above the x-axis and had a slight downward slope</p>
<p>the third one just said where is the object staring at rest, so it was the only one that started at 0,0</p>
<p>no it would be closer to water. because the angle is smaller</p>
<p>for the brid one, i put it is the same size but appears higher
can someone please confirm this?
and for the rocket one, i put throwing stones off a boat
and for the boxes with charges of q and 2q, which one had the greatest force at the center? i put the one with 4 charges of 2q</p>