Science & Mathematics - 26 September 2006

2006-09-26 12:56:13 · 3 answers · asked by urlast2003 1 in Chemistry

police investigators, examining the scene of an accident involving two cars, measures 72m long skid marks of one of the cars, which nearly came to a stop before colliding. the coeeficient of kinetic friction between rubber and the pavement=.80. estimate the initial speed of that car assuming a level road.

2006-09-26 12:55:40 · 1 answers · asked by Anonymous in Physics

a. how people affect their enviroment
b. ancient mathmatical calculations

2006-09-26 12:49:34 · 3 answers · asked by sweet_heart_0x0x 1 in Geography

2006-09-26 12:49:18 · 4 answers · asked by Anonymous in Geography

2006-09-26 12:49:00 · 2 answers · asked by herrmaya 2 in Medicine

Would results occur with a different type of mentos? Why can't u use a regular mint like peppermint or lifesavers?

2006-09-26 12:47:12 · 5 answers · asked by tallizbeautiful 1 in Chemistry

Can you explain the answer?

You have 4 cards, labeled with the letters A and D and the numerals 3 and 6. The rule of the game is that a card with a vowel on it always has an even number on the other side. How many cards do you need to turn over to prove the rule true?

The answer is 2 - the A card and the 3 card, but I don't understand the answer. I would think either 1 card (just the A) or all 4 would be needed. If it only matters what is on the "opposite" side, then only the "A" card matters for the rule, and the others are irrelevant. If the rule matters going both ways, then it seems like any of the cards could disprove the rule. The 6 card could have a consonant under it, disproving the rule, or the D card have an even number under it, disproving the rule.

I just don't get it.

Thanks for any help.

2006-09-26 12:46:13 · 3 answers · asked by tutti frutti 1 in Mathematics

2006-09-26 12:45:52 · 30 answers · asked by Bernie M 1 in Astronomy & Space

at least three please

2006-09-26 12:42:42 · 1 answers · asked by kcrox 1 in Biology

2006-09-26 12:42:24 · 5 answers · asked by yeday 2 in Physics

2006-09-26 12:40:34 · 12 answers · asked by susan m 1 in Zoology

2006-09-26 12:40:12 · 4 answers · asked by POKHER4FUN 2 in Zoology

2006-09-26 12:39:20 · 9 answers · asked by eminemgurl2008 1 in Mathematics

2006-09-26 12:36:42 · 11 answers · asked by Anonymous in Biology

2006-09-26 12:36:36 · 4 answers · asked by eminemgurl2008 1 in Mathematics

2006-09-26 12:35:24 · 4 answers · asked by eminemgurl2008 1 in Mathematics

2006-09-26 12:35:14 · 4 answers · asked by Innocence 3 in Geography

2006-09-26 12:33:13 · 11 answers · asked by Atheist Eye Candy 5 in Astronomy & Space

2006-09-26 12:32:40 · 6 answers · asked by *~JeS~* 5 in Mathematics

I heard that like every 15 seconds lightning strikes the earth hundreds of times. Does Lightning ever strike Antartica? Ever anywhere aside from the extreme coast possibly? What kind of effect does this have?

2006-09-26 12:29:57 · 6 answers · asked by chris 1 in Weather

If nondisjunction occurs,
A. too many gametes will be produced.
B. no gametes will be produced.
C. a gamete will recive too many or too few homologues of a chromosome.
D. a mutation occurs.

2006-09-26 12:27:25 · 2 answers · asked by Anonymous in Biology

If I find out by midnight I get extra credit. So, if anyone knows why the ideal gas constant is the letter R please tell me why and where you found your information.

2006-09-26 12:25:40 · 4 answers · asked by idknemore 2 in Chemistry

Chromatids are

A. tightly coiled DNA.
B. bacterial chromosomes.
C. strands of duplicate gentic material.
D supercoils of protein.

2006-09-26 12:24:22 · 3 answers · asked by Anonymous in Biology

how does [b/(a - b)] x [(a^3 - b^3)/ b]

cancel to (a^2 + b^2 + ab) ?

Please show me the steps involved thanks

2006-09-26 12:20:11 · 7 answers · asked by benabean87 2 in Mathematics

2006-09-26 12:19:31 · 4 answers · asked by daisiedolphin 1 in Astronomy & Space

I woke up and the only thing touching my bed was my head. My feet, legs and body were in the air about 2 feet. When I woke up, I crashed to the bed. Do you think this has the potiential to become a serious problem? I mean I would hate to wake up over the stairs or something one night. Should I tie a rope around one of my legs and anchor myself to the bed? Or is this a one time thing?

2006-09-26 12:16:39 · 9 answers · asked by DallasGuy 3 in Physics

2006-09-26 12:15:04 · 15 answers · asked by Kenny N 2 in Chemistry

why do other people,s farts smell so bad but your own smell good.

2006-09-26 12:07:48 · 2 answers · asked by guysmithdenise 3 in Biology

How have congruent triangles been used for strength, uniformity, ease of construction, and beauty in the bank of China Tower. The website is here... http://en.wikipedia.org/wiki/bank_of_chi...

I have a few ideas... but anymore would be a huge help. Thanks!

2006-09-26 12:07:33 · 2 answers · asked by Roberta A 1 in Mathematics

2006-09-26 12:04:21 · 9 answers · asked by S S 1 in Physics