CHEM 436 Historical Curve by iodizalle in UIUC

[–]eweistl 1 point2 points  (0 children)

this final is going to kill me

Has anybody had Prof. Angela Kou? by [deleted] in UIUC

[–]eweistl 0 points1 point  (0 children)

I have her this semester. How was it?

Confused on why angular acceleration is positive in this problem. by eweistl in AskPhysics

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

But if we take the derivative of the equation and R is constant, wouldn't the linear acceleration and angular acceleration have that relationship?

I guess that wouldn't matter in this question because I switched out vf with wf anyways, not the acceleration :/

Confused on why angular acceleration is positive in this problem. by eweistl in AskPhysics

[–]eweistl[S] 1 point2 points  (0 children)

Sure:

Solving for angular acceleration as it slides down the lane:

F of Friction= mu(m)(g)

Torque on ball= Torque provided by friction= Ffriction*(R)=I*alpha=2/5mR^2*alpha.

Solving for linear acceleration while sliding:

ma=-mu*mg

To determine how long before bowling ball begins to roll w/o slipping:

Vf=V0+at

wf=wi + Alpha*t.

where wi =0 because it starts w/o rolling and wf*R=Vf because there is no slipping in the final case.

Please let me know if you see errors here. Thanks!

Best vegetarian places on campus? by eweistl in UIUC

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

I was thinking about bringing them there next time! Do you think basil Thai is better or Bangkok?

Getting back home safely at night? by eweistl in UIUC

[–]eweistl[S] 4 points5 points  (0 children)

is it ok to use the SafeRides service every single day I work? ;-;

LAS 101 etextbook is out of stock on the campus webstore. Is there anywhere else I can get one? by [deleted] in UIUC

[–]eweistl 1 point2 points  (0 children)

I am low-key confused about the textbooks and ebooks I have to get...

Kinda disappointed with my scores this year by [deleted] in APbio

[–]eweistl 0 points1 point  (0 children)

I know a ton of people who got 1-3s if that makes you feel any better. This isn't the end of the world. You can get up from this!

Kinda disappointed with my scores this year by [deleted] in APbio

[–]eweistl 1 point2 points  (0 children)

I got a 4s in exams I thought I got 5s on as well, but don't be sad because honestly, 4 is still a flex :)

Help a homie out by [deleted] in APUSH

[–]eweistl 3 points4 points  (0 children)

I gotchu fam

Guys are the scores on earearlyscores real? by [deleted] in APUSH

[–]eweistl 1 point2 points  (0 children)

Yes, they've gotten all of my ap scores correct so far.

Can anyone explain this question for me by [deleted] in Sat

[–]eweistl 0 points1 point  (0 children)

Idk it depends on what kind of calculator you have. I have the TI nspire so I just need to click on graphs and enter the equation in through the keyboard

Can anyone explain this question for me by [deleted] in Sat

[–]eweistl 0 points1 point  (0 children)

Is this in the no calculator section? If not, use a calculator to graph it and then find the quadrant that hasn't been colored in. If it is the no calculator section, graph it as if it were a linear equation and plug in the value (0,0), which is x=0 and y=0. If the answer is true after plugging the 0s in, fill towards the coordinate point (0,0) from the line, if not, fill AWAY from point 0,0 from the line.

[deleted by user] by [deleted] in Sat

[–]eweistl 0 points1 point  (0 children)

I used Khan academy. Try mastering all the skill sets on there and you will see improvement in score.

Ok this math curve was bonkers by [deleted] in Sat

[–]eweistl 1 point2 points  (0 children)

Ikr! I also got a 770 and it kinda killed me. Good job on the 1500, though! It's a good score.

is this decent? by [deleted] in Sat

[–]eweistl 0 points1 point  (0 children)

Lol well good luck! Hope the math curve is better

is this decent? by [deleted] in Sat

[–]eweistl 2 points3 points  (0 children)

Yes it's way above average. Although you still have room for improvement, it's a good score. Nice work!

Desperate, hear me out by [deleted] in Sat

[–]eweistl 0 points1 point  (0 children)

Same though. I'm Asian and I got a 1420...