Science & Mathematics - 30 January 2007

help me as i am not good in math. also if you know how to convert miles to kilometers etc etc..well i think there must be a cheat sheet or an easy formula to learn that you can do in your head.

2007-01-30 04:47:12 · 6 answers · asked by Anonymous in Mathematics

what is it called?

2007-01-30 04:46:25 · 6 answers · asked by Anonymous in Botany

A.) Truck 1=
B.) Truck 2=

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass(3,000 kg each) were involved in a rear-end accident at a stop sign. here is what you know:
Truck 1 approched the intersection from the top of a 22-meter hill.
Truck 2 was on a flat stretch of road directly in front of truck 1.
At the bottom of the hill, before braking for the stop sign, Truck 1 was going 20 m/s and truck 2 was going 35 m/s.
From the skid marks on the road you can see that truck 1 applied force on its brakes for 2 seconds, 80 meters before the stop sign.
There were no skid marks left by truck 2. The collision occured at the stop sign, where truck 2 had stopped.
After the collision, both trucks were moving together in the same direction at 10 m/s, before slowly rolling to a stop.
You must now push truck 2 using 1,000 N of force, 8 meters off the side of the road so no one else gets hurt.

2007-01-30 04:45:55 · 1 answers · asked by krysdizzle_2006 1 in Physics

beacuse thay are what?

2007-01-30 04:45:11 · 3 answers · asked by Anonymous in Botany

an engineer student has been given the assignment of designing a hydraulic holding system for a hay baling system. the system has four cylinders with 120 mm diameter pistons with a stroke of .320meters. th elines connecting the system are 1 cm inside diameter. there are 15.5 meters of lines in the system. for proper design the reserve tank should hold a minimum of 50 percent more than the amount of hydraulic fluid in the system. if the diameter of the reserve tank is 30.48 cm, whatis the shortest height it should be?

2007-01-30 04:43:36 · 1 answers · asked by Anonymous in Engineering

Im having a hard time in my Trig class in College, and I'm not able to drop it. Any ideas or suggestions on how to succeed?

2007-01-30 04:43:26 · 4 answers · asked by Barrett!!! 1 in Mathematics

My science teacher is wanting me to take Honers Bio next year because I am thriving in his class right now and he also wants ne to take ESCS which is earth science and chemistry science should I take Horners Bio or not I need help

2007-01-30 04:40:39 · 5 answers · asked by Megan H 2 in Biology

2007-01-30 04:38:05 · 6 answers · asked by Unconditional Love 1 in Medicine

2007-01-30 04:37:57 · 5 answers · asked by She C 1 in Zoology

Where does the air come from?

2007-01-30 04:32:23 · 7 answers · asked by bafler2005 1 in Chemistry

structures that preform specialized functions within the cell are called.................what?i dont know what they are called do you

2007-01-30 04:30:57 · 4 answers · asked by Anonymous in Zoology

If our Vision were to be converted ito digital photography or a Video,
1) Wht is the Raw Resolution and megapixels our Eyes see at ?
2) How many Frams per Second
3) If one Frame of our Vision would be converted into a Digital photo, wht wud be the size of the file ?
4) If our eyes see at so high resolution, why can't we Zoom in, or must i say Like see some thing which is far very Clear, In more Detail ? Because in a Digital photo if when zoom in, we can see better if the Picture is of higher resolution.
5) By any Modification in the cells of the eyes, do u think in near future we are goin to get night vision if we want ?
6) why cannot a complete eye be transplanted from one person to another?
7) Suppose if we had black and white vision, wud u like it ? :D
8)if we cud see Ultra violet radiation or far infra red radiation, wht wud the colour be like?

~~~~~ :)

2007-01-30 04:29:47 · 1 answers · asked by Anonymous in Biology

the double layer of phospholipids surrounding the cytoplasm is called...............................called what do you know please share info with me i really need toknow //

2007-01-30 04:28:05 · 1 answers · asked by Anonymous in Botany

I need a math trick/game for my math course......something that can be proven with a fairly simple proof.....Ive looked everywhere and most of teh stuff is logic problems...(which have ridiculously complex proofs...) it can be a card trick/dice/dominoes but again, not too in depth. This is for a college course but she said we can do even a kids math trick as long as its proven. Any suggestions/websites would be great....Ive done so much research already!!! arrrghhghh

2007-01-30 04:26:56 · 2 answers · asked by Drea 2 in Mathematics

This includes baby Pandas! They are Pandas too!

2007-01-30 04:26:10 · 8 answers · asked by RuffRuff 3 in Zoology

My little brother needs help with his homework so I helped him and now I need to absolutely make sure that his answers are correct. Can you all help please?

Thank you,

5.) 4i(-3i+7)

6.) (3+2i)(9-7i)

7.) 4i/5+2i

8.) 3 + 5i/5-3i

9.) (-2 - the squre root of -36 squared

2007-01-30 04:25:37 · 6 answers · asked by The Ultimate Answerer 3 in Mathematics

I got a 95 on my test and these are the problems that I got wrong and I don't understand how. I think the teacher is wrong, but anyway, can you all work them out so I can see who's right?

Thanks in advance!


1.) x + 4/6 = 1/3 - x-3/4

2.) 27/x-2 + 3 = 18/x-2

3.) 3x +2(2x - 5) = 1 - 7x

4.) (6+4i) - (-4+i)

2007-01-30 04:24:09 · 6 answers · asked by The Ultimate Answerer 3 in Mathematics

Do they eat animals such as bug, insects, creepy crawlies, you know stuff like that?

2007-01-30 04:23:54 · 22 answers · asked by julietboardman 2 in Zoology

2007-01-30 04:23:27 · 5 answers · asked by Anonymous in Earth Sciences & Geology

please show proof of how

2007-01-30 04:22:54 · 4 answers · asked by Mysara e 2 in Chemistry

Given the following data:


Fe3O4 + CO → 3FeO + CO2 DH = +38 kJ


2Fe3O4 + CO2 → 3Fe2O3 + CO DH = +59 kJ


Fe2O3 + 3CO → 2Fe + 3CO2 DH = −28 kJ




Calculate Delta H for the reaction


FeO + CO → Fe + CO2

2007-01-30 04:22:02 · 2 answers · asked by Anonymous in Chemistry

2007-01-30 04:19:25 · 10 answers · asked by Anonymous in Astronomy & Space

I took a friend to the hospital that O'D on 5mg Lexapro pills. The doctor keeps asking me how many she took, but I have no clue. Just freaking out, scared, and trying to hold it together...please help!

2007-01-30 04:19:16 · 5 answers · asked by scarlet_sands 1 in Medicine

2007-01-30 04:16:15 · 10 answers · asked by adam m 1 in Botany

2007-01-30 04:11:39 · 1 answers · asked by Subhash M 1 in Earth Sciences & Geology

2007-01-30 04:10:02 · 8 answers · asked by thecure10 1 in Mathematics

there is no air in the bottom of the pot, so where do these bubbles come from?

2007-01-30 04:08:44 · 3 answers · asked by wantme_comegetme 5 in Chemistry

Well before you answer ... I havent asked you for the value of 'pi' ..But what is a 'pi' .. And how come this number(3.14159265....) got introduced ... I mean whats so special about this number ???

2007-01-30 04:08:39 · 4 answers · asked by Uriel 1 in Mathematics

Which method(s) is(are) not used by bacteria to introduce genetic variation?

a. Transformation
b. Fertilization
c. Conjugation
d. Transduction

2007-01-30 04:03:48 · 4 answers · asked by JoAnna 2 in Biology

2007-01-30 04:03:26 · 1 answers · asked by ahhhhhhhh 1 in Physics