Science & Mathematics - 12 September 2007

2007-09-12 07:37:14 · 2 answers · asked by Anonymous in Chemistry

I just took a urine test and I am wondering if it will show up that i have been taking adapec ( a diet pill) that I have no script for.?

2007-09-12 07:37:00 · 3 answers · asked by sassy 3 in Medicine

2007-09-12 07:34:58 · 2 answers · asked by Anonymous in Physics

I would like to know the distance between the tip and trough of the same antinode on an electric guitar string.
My estimate is around 0.001m, but i'm really not sure!

2007-09-12 07:33:45 · 1 answers · asked by PTP 4 in Physics

2007-09-12 07:29:05 · 2 answers · asked by Anonymous in Physics

CH3O-, H2o, CH3COO-, NaOH, HF, NH2-, HSO4-

2007-09-12 07:28:49 · 2 answers · asked by alyssia_o6 1 in Chemistry

the beaks of a bird and the beak of a giant squid evolved independently and serve the same function. the beaks are _______ structures.
a.convergent
b.phentic
*c.analogous
d.hybrid

the haploid form in a platns life cycle is called the
a.sporophyte
*b.gametophyte
c.parental generation
d.alternative generation

antibiotics are ineffective against viral infection because
a.viruses are protected inside their host cells
b.viruses have enzymes that inactivate the antibiotics
*c.antibiotics interfere with metabolic processes that viruses do not perform
d.viral protein coats block the antibiotics from entering the virus

bacteria reproduce by
a.mitosis
b.meiosis
*c.splitting into identical cells
d.cytokinesis

which of the following is usually characteristic of reproduction in a terrestrial enviroment?
a.extermal fertilization
b.internal fertilization
c.shell-less, water-permeable eggs
d.none of the above

thanks, for the help!

2007-09-12 07:28:01 · 4 answers · asked by Anonymous in Biology

NH3, H2SO4, CH3OH, CH3COOH

Please help me to understand why you are ranking them the way that you do. There are so many rules and exceptions it seems for acids and bases that it is hard for me to rank a group of more than two.

2007-09-12 07:27:14 · 3 answers · asked by alyssia_o6 1 in Chemistry

2007-09-12 07:25:00 · 1 answers · asked by Anonymous in Chemistry

2007-09-12 07:22:44 · 4 answers · asked by bubububububub 1 in Biology

I heard Jaysen Q Rand on the radio last night on coast to coast with George Noory. He predicts a planet X (a brown dwarf star the size of Saturn) will enter our solar system and cause a polar shift in 2012. What would be the ramifications of a polar shift no matter what the cause. Please only people with extensive knowledge of the matter respond. Thanks

2007-09-12 07:21:28 · 6 answers · asked by Johnny D 2 in Astronomy & Space

2007-09-12 07:20:06 · 2 answers · asked by Anonymous in Physics

Find the number of ways to rearrange the letters in the following word. ALABAMA

OK, there are 7 letters and 4 of them are A's three of them are not. Now what?

2007-09-12 07:18:20 · 3 answers · asked by Libby 5 in Mathematics

What is the maximum value on the given interval.

Correct me where I'm wrong:

Endpoints:
f(0)=16
f(1)= -6.658

f'(x) = -32sin(2x)
-32sin(2x)=0

OK, this is where I'm spacing out.
Am I considering all possible values of x between 0 and 1 in the last equation?

2007-09-12 07:18:14 · 3 answers · asked by RogerDodger 1 in Mathematics

How do u this?

2007-09-12 07:15:55 · 3 answers · asked by Anonymous in Mathematics

could we still live

2007-09-12 07:15:18 · 37 answers · asked by Mr.X 2 in Astronomy & Space

2007-09-12 07:14:10 · 5 answers · asked by chimsy 2 in Physics

2007-09-12 07:13:25 · 13 answers · asked by Anonymous in Engineering

2007-09-12 07:12:18 · 15 answers · asked by Scotty Doesnt Know 7 in Weather

i understand that is acceleration is the change in velocity over time. where i am getting confused is with deceleration vs. acceleration in a negative motion...how do you tell them apart on a graph?
for example, say i am going to jump in the air. i realize that from the moment i leave the ground, my acceleration will be equal to my gravity...but, what happens with my acceleration as i bend my knees down and then on my upward movement before i leave the floor...any help will be appreciated...i can't seem to get my head around this.

2007-09-12 07:11:43 · 2 answers · asked by meego99 2 in Physics

Saw a documentary on it. What do they actually do there?
Any Idea?

2007-09-12 07:10:22 · 9 answers · asked by Raaj 1 in Astronomy & Space

Mass cannot be created or destroyed. This being said, with all that humanity has built and made, we have only changed matter. The only ways I can conceive of our Earth increasing in mass is from meteorites & energy from the sun. Perhaps my real question is, does the energy from the sun add to the mass of our planet and does anyone know approximately by how much?

2007-09-12 07:09:28 · 4 answers · asked by scottnra 2 in Physics

2007-09-12 07:05:29 · 5 answers · asked by pammer 2 in Engineering

Throw a single photon at a wall. Where it hits is its location at that exact moment. We also know that light travels at c (about 300k km/s). Therefore, we know both the speed and location of that photon.

2007-09-12 07:04:19 · 4 answers · asked by Anonymous in Physics

I went to see my Family Doctor and I had to take a drug test well on Sept.8 2007 I got a letter saying I fail my drug test they don’t say for what ….Don’t I have the right to Know what showed up on my drug screen …I take Hydrocodone10/650 for my back pain and 2 blood pressure medicines an a thyriod that day I drunk a full throttle bad mother energy drink and I had been taking Life’s Fortune Multi-Vitamin Plus the Medicines the Doctor had me on ..I don’t do street drugs what could have cause me to fail it. Oh before I seen the doctor I had to us the restroom then they wanted me to give them some urine for the Drug test could it be that they think I tried to tamper with it but thats not the case

2007-09-12 07:01:43 · 3 answers · asked by mikecrane25 1 in Medicine

This volcano activity reduced the human population of the planet to 7500 individuals about 75,000 years ago. With the large earthquakes in the area around Mt. Toba, I thought the mountain may be clearing its throat.

2007-09-12 06:53:53 · 2 answers · asked by Peter B 1 in Earth Sciences & Geology

Six out of the past eight days have been cold enough that people needed to wear gloves. Based on this information, predict how many times you can expect people to need to wear gloves during the next twenty-eight days.

2007-09-12 06:53:12 · 10 answers · asked by . 1 in Mathematics

the answer is 5x10 -4 (10 to the power of minus 4)

anyone please tell me how to do this?i'v just started physics so i'm kinda lost lol

2007-09-12 06:52:42 · 3 answers · asked by GRAND SLAM 09 BABYYY 2 in Physics

A stone is thrown straight upwards with an initial speed of 47.5 m/s. (a) How long is the stone in the air before it hits the ground? (b) How high does it rise? It is assumed that the stone heads upwards from ground level.

I got:

(a) 9.7 sec

(b) 115.2 m

Am I correct? I hope I used the right number for acceleration (-9.8m/s^2). Thanks.

2007-09-12 06:51:05 · 2 answers · asked by labelapark 6 in Physics

of a car is left running, and the car is not moving. The engine is on and thats it. Nobody's in the car, only the engine is left running. So my question to you is, how long does it take for the fuel to go from full to empty??? Example: 1 day, 1 week, 1 month.... I don't know you tell me. how long???

I'd really appreciate it if you can tell me how long will it take for the engine to stop running (going from full to empty).

The car is a 2007 Chevrolet Aveo, 1.6 litter L4 Engine, fuel injection automatic 4 speed transmission. EPA estimated MPG 26 city, 34 highway.

And yes this is a very important question and need help answering it. Thanks

2007-09-12 06:50:39 · 8 answers · asked by Anonymous in Engineering