#vector calc

[obsidianstudy]

april 20, 2019.

what’s up, my dudes! figured i should probably post something to prove i’m still alive and kicking.

q 4 u (question for you): what’s everyone’s favorite cafe/coffee shop go to snack? 

[becomingcaide]

Well I managed to get a  64.17% which is better than I thought I would do considering I learned I had a midterm like 3 hours ago. Still feel like a failure. But no pulling!

[whattheworldisreallylike-blog]

Finally done with chapter 2! I’m so happy, okay, gotta be done with 4 by next Thursday...

[a-lone-so-blog]

It's too early to be finding surface areas.

[meanstreets]

One of my fucking homework problems

A clarinetist is playing the glissando at the beginning of Rhapsody in Blue, while Hermione (who arrived late) is walking toward her seat. If the (changing) frequency of the note is f and Hermione is moving toward the clarinetist at speed v, then she actually hears the frequency ϕ given by,

ϕ = f((c + v)/c)

where c is the (constant) speed of sound in air, about 330m/sec. At this particular moment, the frequency is f=400Hz and is increasing at a rate of 100Hz per second. At that same moment, Hermione is moving toward the clarinetist at 4m/sec and decelerating at 2m/sec2. What is the perceived frequency ϕ she hears at that moment? How fast is it changing? Does Hermione hear the clarinet’s not becoming higher of lower?

FUCK YOU

(at least they used the name Hermione)

[alwaysapplicable-blog]

What do you get if you cross a mosquito with a mountain climber? Answer: You can't cross a vector with a scalar!

 "Foolproof: A Sampling of Mathematical Folk Humor" by Renteln and Dundes

[bella-trix-areforkids]

What, pray tell, is a parameterization?

Oh yeah. What I'm being tested on tomorrow. Wait, what is it?

[efrobinson]

Sucks when you do a problem correctly, and then check it carelessly.  Then you go off on a frustrating hour and a half long tangent trying to figure out how to do it...

At least I understood it and got it right though I suppose...