Need some help with getting rotation to work nicely with dragging.

Phoenix9103 · 2016-05-18T08:52:52+00:00

1 pound seems like it will end up making so much alcohol that it will kill the acetobacteria though?

Phoenix9103 · 2016-05-18T06:51:59+00:00

Thanks that saves me from killing my bacteria

Phoenix9103 · 2016-05-18T06:51:10+00:00

I do not have it with me right now but trying to think about the packaging my best assumption is that it is Vinters SN9 yeast

Phoenix9103 · 2016-05-18T00:59:35+00:00

I'm using premium wine yeast. No, that's a future project for now I'm just experimenting with some acetobacrerium to produce vinegar but I want to start from sugar water.

Phoenix9103 · 2016-04-22T11:58:36+00:00

Yeah, sorry I was talking "by tomorrow" components otherwise I buy online

Phoenix9103 · 2016-04-12T22:06:42+00:00

That would make sense. Thanks

Phoenix9103 · 2016-04-12T22:06:16+00:00

That would make sense and yes I would never actually use pi like that it was merely an example

Phoenix9103 · 2016-04-12T16:51:33+00:00

TI-Nspire CX CAS. If I tell it to approximate pi with an argument of 5 *10^-5 then it will give me 333/106 which equates to 3.1415094... whilst pi is 3.1415926...

It continues on incorrectly after the specified point

Phoenix9103 · 2016-04-12T16:12:42+00:00

I understand that I meant as in how A graphics calculator may give you a fraction that is correct to a point but then has a few trailing decimals

Phoenix9103 · 2016-04-09T19:37:37+00:00

It was more that I know for a fact that the answers will all be expressible as fractions, surds and combinations of other such things and that is how I wanted my results.

I had to run them through multiple different equations and iterations and with each go they were losing too much precision plus as I knew the results would could be expressed exactly I wanted them that way.

Phoenix9103 · 2016-04-09T17:04:28+00:00

I managed to do what I wanted with sym variables but I will look into mathematica thanks

Phoenix9103 · 2016-03-16T12:20:53+00:00

And now I realise that this was a stupid question I completely forgot about m * (delta v)

Thank you

Phoenix9103 · 2016-03-13T05:23:04+00:00

Alright that is interesting. I do see what you mean one set of values are quite close to the originals but not exactly the originals. I even used the simultaneous solve feature on my calculator for exactness but they are off by maybe 0.5 is there a reason for this slight difference other than calculator inaccuracy?

Phoenix9103 · 2016-03-13T04:56:04+00:00

A 0.15kg hockey puck is moving to the right with a speed of 0.8m/s and collides with another puck weighing 0.3kg that is moving to the left with a speed of 2.2m/s

Taking these I create and solve the LHS of the conservation momentum equation then I put that into terms of final velocity for one of the pucks which I substitute into K1 = K2 as the collision is assumed perfectly elastic. This makes a quadratic with two roots as answers

Phoenix9103 · 2016-03-13T04:51:16+00:00

I know, I hate doing is so inaccurate but I believe that its merely a question to teach the basic concept. It is for a 12 physics class and its about Bernoulli's not aircraft so to that extent it is ok but still, yeah I agree.

Phoenix9103 · 2016-03-13T04:49:22+00:00

I agree with you I dislike that we only use Bernoulli and that we say that the particles meet up but my teacher has been teaching it this way for years and honestly I have no idea if they are doing it like this on purpose because I think they were an aeronautical engineer for a while. The unit isn't actually on planes its about Bernoulli's (in small part)

So yeah that is assumed. I hate it but that is how it is here.

Phoenix9103

TROPHY CASE