physics help aaaaaaaaah

[The artist formally known]

we can't use measurements.
they gave us how much power the star outputs...
and how fast its spinning and how fast it descreases per second in seconds per second haha.
and we have to find its moment of intertia with that
but i am already almost completely done, just needa plug it in to the calc, but i left it at school so ill do that tomorrow

That seems like the very very end of Physics 4A, not sure if that is what it is called where you're at. Physics 1 with calculus.

[Minus;]

Its called physics C.
Third year. Yes it has calculus.

[The artist formally known]

Its called physics C.
Third year. Yes it has calculus.

Yeah I'm not going to go into my third year of physics, if I do not for a while. My professor is a really smart guy and he expects everyone to know everything about math. He thinks you should memorize the formulas and didn't let people use a cheat sheet.

I congratulate you on getting to your third year. I'm in 4B, the 2nd year. My class is like 15 students and only 1/3 through.

I absolutely love physics though.

[Minus;]

Yeah its pretty great
I actually don't even know calculus yet.
i have calculus at the moment.
Im learning it as we go...ive gotten months ahead of the cal class already.
Its easy stuff.

We don't need cheat sheets, ive memorized everything ive needed to know so far.
But we don't get any sheets or anything. No calculators on tests either. And he grades AP style.
But everything is in variables.
Which i hate. Sometimes he gives problems with actual numbers, and once in a while he'll allow calculators but only for the free response. For the most part we never need them.

[The artist formally known]

Yeah its pretty great
I actually don't even know calculus yet.
i have calculus at the moment.
Im learning it as we go...ive gotten months ahead of the cal class already.
Its easy stuff.

We don't need cheat sheets, ive memorized everything ive needed to know so far.
But we don't get any sheets or anything. No calculators on tests either. And he grades AP style.
But everything is in variables.
Which i hate. Sometimes he gives problems with actual numbers, and once in a while he'll allow calculators but only for the free response. For the most part we never need them.

That's pretty ridiculous that you don't know Calculus.

So do you know how to integrate something like:

∫ E dot product da

With the E as a constant

[Minus;]

Yeah im pretty sure, don't you take the constant out and do pretty much a reverse deravitve?

Idk. I can do it pretty well.
When theyre harder like stuff i haven't covered yet, i just plug it in to the ti-84, or -89.
But for the most part i get it.

If you give me one i can do it. What i didn't know at first was how to get the +C at the end, and ended up missing some questions on my first test. But after i learned that i started getting them right.
Because on the test he doesn't give calculators, and i didn't know there was C nobody had taught me yet. But i picked it up.

[The artist formally known]

Yeah im pretty sure, don't you take the constant out and do pretty much a reverse deravitve?

Idk. I can do it pretty well.
When theyre harder like stuff i haven't covered yet, i just plug it in to the ti-84, or -89.
But for the most part i get it.

If you give me one i can do it. What i didn't know at first was how to get the +C at the end, and ended up missing some questions on my first test. But after i learned that i started getting them right.
Because on the test he doesn't give calculators, and i didn't know there was C nobody had taught me yet. But i picked it up.

Dot product first.

Man I really need to get a calc that can integrate.

[Minus;]

Yeah well idk don't like it worded, but what kind of calculator do you have? Even the old 83's can integrate.

[The artist formally known]

Hmm, I know it can, just never figured it out. TI-84

I tried Math -> mDeriv(

But it didn't work. Haven't tried much else.

[Minus;]

To integrate?
Don't know how to do derivatives, i think only 89's do that.
But go to math. go down to 9, it says fnINT, which is like finite integration or something.
Type it in as fnINT(______, your variable, bottom limit, top limit)

You have to have limits, or whatever you want to call them.
So say its like integral of 3x^2+4x, from x=0 to x=2, youd put fnINT(3x^2+4x,x,0,2) and it gives you the numerical answer.

[The artist formally known]

To integrate?
Don't know how to do derivatives, i think only 89's do that.
But go to math. go down to 9, it says fnINT, which is like finite integration or something.
Type it in as fnINT(______, your variable, bottom limit, top limit)

You have to have limits, or whatever you want to call them.
So say its like integral of 3x^2+4x, from x=0 to x=2, youd put fnINT(3x^2+4x,x,0,2) and it gives you the numerical answer.

Thats pretty limited. Yeah I don't know why I switched to derivatives all of a sudden, thats why I screwed up my test on Friday haha.

[Minus;]

yeah it is limited. but all i usually have is ones with boundaries.
its a physics thing you know?
we haven't gone over integration in cal still on derivatives.