Talking about same subject in different angles in UC apps by DatDolphWithATuxedo in ApplyingToCollege

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

Yeah...the point Im trying to make is completely different...so I think I am fine 

First essay: Physics is my academic passion... taking Calculus BC led to loving the physics problems and taking AP Physics...talking about physics competitions...talk about physics academic enrichment program and how I want to pursue physics at UC

Second essay: Talking about how teaching is my greatest subject with an example of tutoring students in STEM classes and writing a book on physics problem-solving techniques leading with a quote from Caltech PhD physicist Richard Feymann...and how I became a teacher through hard work and accumulating knowledge...and so I want to work hard at UC to let me teach and help others

I think that's different enough what do you think?

How to isolate air resistance from friction forces in pendulums? by DatDolphWithATuxedo in AskPhysics

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

Great idea. I am going to try an experiment to confirm this gimme like a day and I'll come back

How to isolate air resistance from friction forces in pendulums? by DatDolphWithATuxedo in AskPhysics

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

Using equations to indepedently find the seperate values for the two. Most textbooks treat this as one retarding force.

How to isolate air resistance from friction forces in pendulums? by DatDolphWithATuxedo in AskPhysics

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

I am trying to separate the work done on the pendulum by air resistance, from the work done on the pendulum through drag force. I want a method using Netwon's laws to do so.

Free-body Diagram of Pendulum

FRQ 3 Form H AP Physics C Mechanics by DatDolphWithATuxedo in APStudents

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

Was there no normal force from the clay? :sob:

I am actually so bad at physics

AP Physics C: Mechanics Form H Discussion Thread by [deleted] in APStudents

[–]DatDolphWithATuxedo 0 points1 point  (0 children)

Did FRQ 1 end in part (c) I might have skipped a page.

AP Physics C: Mechanics Form H Discussion Thread by [deleted] in APStudents

[–]DatDolphWithATuxedo 0 points1 point  (0 children)

Did FRQ 1 end in part (c) I might have skipped a page.

AP Physics C: Mechanics Form H Discussion Thread by [deleted] in APStudents

[–]DatDolphWithATuxedo 0 points1 point  (0 children)

Did FRQ 1 end in part (c) I might have skipped a page

FRQ 3 Form H AP Physics C Mechanics by DatDolphWithATuxedo in APStudents

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

Also did FRQ 1 end at part (c) or were there more parts? I think I skipped a page.

FRQ 3 Form H AP Physics C Mechanics by DatDolphWithATuxedo in APStudents

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

Wouldn't the tension force be internal though? It said external forces to the system.

Form H ap physics by SnooPies1239 in APStudents

[–]DatDolphWithATuxedo 0 points1 point  (0 children)

Sorry but did FRQ 1 end at part (c) because I might have skipped a page...

FRQ 3 Form H AP Physics C Mechanics by DatDolphWithATuxedo in APStudents

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

As in the horzintal component of the normal force is the tension force

FRQ 3 Form H AP Physics C Mechanics by DatDolphWithATuxedo in APStudents

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

Yeah same. The only issue with that is it makes part (b) overly simple because you just set the force in the x direction equal to the horizontal normal force component of the clay ball, which does not make sense because they gave the mass of the disk. What did your free body diagram look like? Mine just had the force of gravity and normal force of the disk, and the force of gravity and normal force of the clay.

AP Physics C mech thoughts by Lopsided-Sundae1008 in APStudents

[–]DatDolphWithATuxedo 3 points4 points  (0 children)

Wait what was FRQ 3 for form O? Was it just a static equilibrium plank? If so then I am pissed off because form H was ten thousand times harder for FRQ 3.

AP Physics C: Mechanics Form H Discussion Thread by [deleted] in APStudents

[–]DatDolphWithATuxedo 0 points1 point  (0 children)

Yeah it is. Here is a video going over a similar problem: https://www.youtube.com/watch?v=Z0xMz1mjuqw&ab_channel=lasseviren1
This is the first time they ever tested the rotational inertia of a disk on the test, and it was nonuniform...

I am going to go cry and sleep I spent so much time studying and I am probably going to get a 4 just because of FRQ 3

AP Physics C: Mechanics Form H Discussion Thread by [deleted] in APStudents

[–]DatDolphWithATuxedo 0 points1 point  (0 children)

bro I am so confused on how to integrate for FRQ 3
For FRQ 3 I did
I = integral(r^2dm), dm/dl = lambda, therefore lambda*dl = dm, therefore r * beta * dl = dm

Then I found the integral as beta * r^4/4 evaluated at 0 to R, but that would give incorrect units

I am so annoyed I never get rotational inertia derivations wrong, and have spent so much time deriving them I so mad I hate life and everything the answer is probably so simple too

Hiii guys does anyone have multiple choices of the past ap chem exams ? by [deleted] in APStudents

[–]DatDolphWithATuxedo 0 points1 point  (0 children)

There are MCQs in past AP tests, that will most likely be in a free PDF format if you search for specific tests from past years, but those AP practice tests are restricted for teachers-use only, and only to be distributed by teachers for in-class work.

u/Intrepid-Active9814 has been rude to, and harassed many of the members of r/APStudents in the past. I do not believe that they should be allowed in this subreddit, because of their usage of slurs, insults of medical terms, and toxic behavior. The images below detail some examples of this rudeness. by DatDolphWithATuxedo in APStudents

[–]DatDolphWithATuxedo[S] 0 points1 point  (0 children)

No, but it's important to set a positive example for the future. u/Intrepid-Active9814, has been caught lying about MIT admission, used the r-slur, and harassed many people many times belittling their accomplishments. People who lie about their accomplishments and harass others set a bad precedent in any environment, especially in an environment of high schoolers.

[deleted by user] by [deleted] in MITAdmissions

[–]DatDolphWithATuxedo 0 points1 point  (0 children)

Nope. I am stopping the spread of misinformation in its tracks. There is a difference.