If there is a God, i must have pissed him off

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Pengwuino

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Boy did i have one hell of a day. I get my results from my last midterm for htis differential equations and linear algebra class... f....F.... FAIL, beyond fail even! I should have been given an X on it. Then on my chemistry exam on, amongst other things, electrochemistry, my calculator batteries die and i don't have any backups. Do you know how hard it is to figure out what the hell ln(1/2) on a test with no calculator? Or how bout [tex]k = e^{\frac{E}{R}(\frac{1}{{T_2 }} - \frac{1}{{T_1 }})}[/tex] ??

Oh well it wasn't that bad...

Then i got home and looked at the mail and BOOM, Jury duty.

Day = suck
 

JamesU

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Well I'm sure Cyrus will be here to make fun of you
 

Pengwuino

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yomamma said:
Well I'm sure Cyrus will be here to make fun of you
He's already late
 

JamesU

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I'll call him at home
 

Pengwuino

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That's when you know your day is really bad and that you're not just belly-aching and making up drama.... you get hit with jury duty summons.
 

JamesU

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give some BS excuse not to go
 

Pengwuino

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yomamma said:
give some BS excuse not to go
Yah like "I plan on being tossed in jail because i didn't report to jury duty"? This isn't some school field trip to a museum. Thankfully from what I hear, you just tell them you're a physicist or a physics major and the lawyer's will tell you to go away and build a laser.
 

Math Is Hard

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fill out the form in crayon and explain that you cannot possibly serve jury duty because you are a penguin. that should do it.
 

Pengwuino

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Math Is Hard said:
fill out the form in crayon and explain that you cannot possibly serve jury duty because you are a penguin. that should do it.
Yah and instead of a deputy, they'd send out the nut-house guys to my house :rofl: :rofl: :rofl:

Ahh so many people don't care about their civic duty these days that i bet they even expect people not to come.
 

Gokul43201

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It just takes doing a few half-life problems before it gets permanently etched in one's brain that ln2 = 0.693. So, ln(1/2)=-0.693

Alternatively, from high school math classes you might recall that lnx=2.303logx, and surely you know that log2=0.301

As for calculating the rate constant from Arrhenius, I couldn't say unless I had the numbers.

It's also useful to feep a couple other numbers in your head for a rainy day : log3=0.4771, log7=0.8451

Mostly, that's all you'll need to find any other logarithm.
 

Rach3

Pengwuino said:
my calculator batteries die and i don't have any backups. Do you know how hard it is to figure out what the hell ln(1/2) on a test with no calculator?
Slide rule?
 

Astronuc

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Rach3 said:
Slide rule?
:rofl: Good idea . . Batteries not needed.
 

Curious3141

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Pengwuino said:
Do you know how hard it is to figure out what the hell ln(1/2) on a test with no calculator?
Tsk tsk. You really should remember stuff like ln 2. Of course ln 0.5 = -ln 2

Here's what I have committed to memory, I consider this to be the basic minimum.

Natural log (ln) 2 = 0.693
Common log (ld) 2 = 0.301

By dividing those, you can work out ln 10, and you can convert between natural and common logs.

Oh yeah, also remember powers of 2 up to around 2^20 and up to the fifth powers of other numbers from 3 to 11 (of course you can omit the composites and powers (6 = 3*2, 9 = 3^2, 8 = 2^3 etc), 5 = 10/2 and powers of 11 are trivially easy with a Pascal's triangle-like addition algorithm, so that amounts to memorising only powers of 3 and 7). And try and remember stuff like sqrt 2, 3, 5 and 10 up to 3 decimal places. And of course pi and e to 9 decimal places (e is very easy, it almost seems to be a recurrent decimal for the first few places).

All this stuff will really help you in a pinch. It's like the Amex ad : "just in case". :smile:
 
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Moonbear

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Pengwuino said:
Yah and instead of a deputy, they'd send out the nut-house guys to my house :rofl: :rofl: :rofl:
But it would get you out of it. :biggrin: :rofl:

Better stock up on books, because you'll have a lot of time to sit around and wait while they decide you can't serve on any case for jury duty. Lawyers don't like people with a science background; they understand the forensics too well. Then again, you could show them the F you got and maybe they'll decide you're okay to put on an interesting case. :tongue:

Now, where is Cyrus? You're down and he isn't here picking on you...I hope he's feeling okay. :uhh:
 

Curious3141

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Moonbear said:
Lawyers don't like people with a science background; they understand the forensics too well.
If this is true, I've lost all faith in the legal system. :frown: If the fate of someone depends on convincing the ignorant and/or unintelligent, what hope have we of justice ?

I would've said I've lost all faith in lawyers, but I never had any to begin with. :rofl:
 
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Too bad you got an F. Just take it again next time and study hard. Now I must return to studying for my 2 finals this saturday myself. I have forced myself off of PF by blocking it on my IE6. :bugeye: Cold-turkey is not good...

bye bye
 

cronxeh

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Pfft. A whining penguin? New species! I shall name you.. Spheniscus whinasaurus :biggrin:

Its just a couple of F's.. Gale got a dozen of those, I'm almost there. Just retake it and next time get an A and be like BOOYA!
 

Gokul43201

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cyrusabdollahi said:
Too bad you got an F. Just take it again next time and study hard. Now I must return to studying for my 2 finals this saturday myself. I have forced myself off of PF by blocking it on my IE6. :bugeye: Cold-turkey is not good...

bye bye
An alien has taken over Cyrus !
 

Pengwuino

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cyrusabdollahi said:
Too bad you got an F. Just take it again next time and study hard. Now I must return to studying for my 2 finals this saturday myself. I have forced myself off of PF by blocking it on my IE6. :bugeye: Cold-turkey is not good...

bye bye
:bugeye: :bugeye: :bugeye: :bugeye: :bugeye: :bugeye: :eek: :eek: :eek: :eek: :eek: WHAT'S GOING ON HERE?!?!??!?!?!!
 

Moonbear

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Pengwuino said:
:bugeye: :bugeye: :bugeye: :bugeye: :bugeye: :bugeye: :eek: :eek: :eek: :eek: :eek: WHAT'S GOING ON HERE?!?!??!?!?!!
And you thought you had a bad day! Obviously, poor Cyrus is completely crumbling under the exam pressure. :eek:
 

wolram

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cyrusabdollahi said:
Too bad you got an F. Just take it again next time and study hard. Now I must return to studying for my 2 finals this saturday myself. I have forced myself off of PF by blocking it on my IE6. :bugeye: Cold-turkey is not good...

bye bye
A man under great stress, i bet Cyrus has spare batteries, calculator and a
back up slide rule, i guess it makes one feel good knowing they have paid out
for that F.
 

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