<p>What was the inertial mass answer. I remember debating between “inertial mass is infinity” and “inertial mass is 0.”</p>
<p>I don’t remember the question for that, could you try to recount it? (I do know that I put the answer as 0, and I was quite confident in that answer though. :P) </p>
<p>I also just texted my teacher (a Berkeley grad for molecular biology) who said that her answer would be tungsten. Shame.</p>
<p>I put 0 and tungsten too. The inertial mass one said that a mass is being moved with a constant force across a plane that has friction or something, and it was asking what the explanation for that was.</p>
<p>Oh I remember that question. Didn’t the question ask why it was stationary? So the answer would be that the force of static friction is equal to the applied force. </p>
<p>The tungsten one is right.</p>
<p>Was the answer to the capacitance question 2 V?</p>
<p>Now I remember the question!</p>
<p>The question said that a force is applied to an object on a rough floor. It was asking why the object wasn’t moving.</p>
<p>Really? I thought it asked why the object was moving even though there was a frictional force. Anyone else see this problem?</p>
<p>maybe it was asking why it was moving with a constant velocity? Then the force of friction would have to equal the force applied to the box, right?</p>
<p>Haha I totally don’t remember this question. 
If there is a box moving at a constant velocity, then the net force is zero. Friction must thus equal the force applied to the box.</p>
<p>Superconductivity question = 0 resistance.</p>
<p>Was the answer to the capacitance question 2 V?</p>
<p>Yeah 0 is the right answer for the superconductivity question. Oregonsenior, i think that’s the question you put 0 for.</p>
<p>^^That’s what I put, but I had no idea how to solve that one. I tried to use C=Q/V, and if Q decreases by .2 then V decreases by 2 (since C=.1). However, that math is completely wrong (since a) it doesn’t decrease by a factor of anything and b) both Q and V should decrease by the same factor), but I couldn’t see any other way to do it.</p>
<p>Edit: Sorry if my punctuation is unclear. I meant for the entire parenthetical aside to include:</p>
<p>(
a) Reason a
b) Reason b
)</p>
<p>Undisputed answers so far:</p>
<p>antimatter question: positron
water is boiling: upper most straight part
Index of refraction: sin 60 / 1.5
Given initial velocity, mass, and stopping time: 1, 2, and 3
Force x time = change in momentum
What led to the nuclear model: gold foil experiment
Skydiver jumping off of a plane: potential energy > kinetic energy
Throw ball a up and ball b down at same initial velocity. Whats the velocity of ball a: v (same as ball b)
Half covered lense: full object, but decreased intensity
Index of refraction is 4/3: wavelength is 3/4
Which waves will result in the least disturbance: 6 + (1/2)wavelength
Man is standing underneath water: only choice 1 (the bird and the tree appear to be higher than they actually are)
Particle question where you know the rotational speed of the giant ball with a slit in it: you can only find the speed of the particles
Students climbing stairs - heaviest one
Pv = nrt : t increases as q increases
Heaviest: neutron
Concave mirror: virtual image
Convex lense: real image both small and big
acceleration due to gravity: 1/9
Theta and initial velocity one: Just increase the initial velocity
Worker kicks the bucket: 2 m
Must be electrical field: point charge
Must be magnetic field: bar magnet
Ammeter question (based on drawing from ImageShack® - Online Photo and Video Hosting
Highest: 1 and 2
Lowest: 4 and 5
Vector direction for electric field: West
Vector direction for negative point charge: East
Mass of object in pulley problem: 1.2 Kg
Projectile: net force is constant, direction of net force is constant, angle of net force with path is changing
Object rotating around planet: net force is constant, direction of net force is changing, angle of net force with path is constant (always perpendicular to path)
Speed of light question: 10^-13 J
Traffic light question: All colors except red are absorbed
Piano question: wavelength and period both decrease
emf question with coil and battery: current is induced in all cases except when the coil and magnet have the same velocity
Firetruck question: Velocity of truck + velocity of sound in air
Velocity of puck after collision: 4 m/s
Elevator: 24 N
Graph displaying vertical displacement as a function of time: Vertical spring and rippling tank
Heat transfer question: 4 watts
Difference between sound waves and light waves: polarization
Mass falling through air: 1 and 2 are right, but 3 is wrong (Adding mass doesn’t ■■■■■■ its fall)
Superconductor question: 0
Capacitance question: 2 V
Dark room question: tungsten</p>
<p>Disputed questions:</p>
<p>Box moving with a constant velocity on a rough surface. Does anyone remember the question?</p>
<p>No, I remembered the superconductivity question. Was there a question that asked what a force would be either in the center of an electric/magnetic field or in the center of a planet or other large massed object? If so, that’s probably what I was thinking of that I put 0 for. Oh well, I’m sure it will come up eventually.</p>
<p>Move the capacitance question to disputed since neither of us is sure of the answer. And as for the box moving at constant velocity, I believe the question asked why/how the box moved at constant velocity. The answer was something along the lines of the magnitude of tension=friction.</p>
<p>Can someone verify that these answers are correct?</p>
<p>For the pendulum question, you had to decrease the length to decrease the period, right?</p>
<p>Was that the question with two point charges, one negative and one positive? The electric fields stack so the force is non-zero.</p>
<p>Apn00b, I agree with your friction answer.</p>
<p>Oregonsenior, I don’t remember a question asking for the force near the middle of either two charged particles or two large masses.</p>
<p>^^^Pendulum is correct.</p>
<p>Edit: ^I think that was asking for the force on an electron at a point directly above the middle of the two charges.</p>
<p>oh the answer to that was east, right?</p>
<p>What was the answer to the electrically charged leaflets? The rod was positively charged, right?</p>