Science & Mathematics - 29 November 2007

2007-11-29 15:59:06 · 4 answers · asked by alwalclif 2 in Mathematics

2007-11-29 15:58:24 · 5 answers · asked by ghggf 1 in Mathematics

2007-11-29 15:56:16 · 15 answers · asked by vkannan 1 in Astronomy & Space

2007-11-29 15:52:16 · 5 answers · asked by video gamer 2 in Mathematics

2007-11-29 15:50:51 · 2 answers · asked by alwalclif 2 in Astronomy & Space

2007-11-29 15:48:06 · 14 answers · asked by Sidney Shane D 1 in Geography

I've heard some say that you're attached to a cord that won't let you go far....so what's the use? I've also heard others say that they go everywhere. Can you go to another country/ continent? Which is right?

2007-11-29 15:47:32 · 9 answers · asked by Deenie 6 in Paranormal Phenomena

2007-11-29 15:47:31 · 7 answers · asked by gigi90232 2 in Mathematics

Solve each formula for the indicated letter. Assume that all variables represent nonnegative numbers.

1)a^2 + b^2 = c^2 [Pythagorean formula in 2 demensions]

2) w= √1/LC, for L [The square root is over (1/LC)
An electricity formula]

2007-11-29 15:42:27 · 3 answers · asked by Anonymous in Mathematics

Someone please enlighten me about this. Peoples that claim being able to talk to dead peoples or spirits i want to know something. I read somewhere you can only talk to spirits that have yet to go through the light ? Is that right ? I mean are their spirits that choose to remains on that "lower plain of existance" instead of going to the light ? I mean once a spirit go through it, is it no longer possible to communicate with them ?

2007-11-29 15:39:24 · 10 answers · asked by Kaynos 5 in Paranormal Phenomena

du/dt = e^(3u - 14t)

initial condition: u(0) = 0

HINT:
To determine the constant of integration after you integrated both sides, DO NOT take natural logs, but rather just set u = 0 and t = 0 with u and t both still exponents. After determining the constant, then you need to take logs on both sides to solve for u.


The hint was given in a practice problem. Let me see if y'all can show me something of it.

2007-11-29 15:33:34 · 1 answers · asked by Gills 1 in Mathematics

Is it Na3 (BO3)

2007-11-29 15:32:10 · 0 answers · asked by bomerman65 1 in Chemistry

An atom of sodium has a larger mass than an atom of neon. How is this possible when neon has so many more valence electrons?

2007-11-29 15:29:16 · 8 answers · asked by Anonymous in Chemistry

2007-11-29 15:24:13 · 15 answers · asked by ♥cup_cake♥ 2 in Earth Sciences & Geology

I read once that the basic technology for the modern cellphone actually was invented decades ago but the patents expired before the inventor could make any money. Apparently cellphones are the great-grandchildren of that phone-in-a-box you always saw Cpl. Radar using on the MASH television show. My question is how was the technology adapted? How did something from the 1940s become a 21st century necessity?

2007-11-29 15:24:02 · 4 answers · asked by Brian G 3 in Engineering

i recently was prescribed some medicine called alprazolam and i take it at bedtime. I want to know how many hours before i take this medicine and how many hours after this medicine can i drink alcohol i love drinking sometimes so does any one know i just dont want to mix alcohol with this

2007-11-29 15:23:58 · 6 answers · asked by cocoa 4 3 in Medicine

2007-11-29 15:20:05 · 2 answers · asked by Answer Seeker 1 in Mathematics

A 17 kg crate is to be pulled a distance of 20 m requiring 1210 J of work being done. If the job is done by attaching a rope, and pulling with a force of 75 N, at what angle is the rope held?

2007-11-29 15:19:14 · 1 answers · asked by Anonymous in Physics

My biology teacher asked me this and I have no idea! Will someone explain it?

2007-11-29 15:19:11 · 3 answers · asked by Anonymous in Biology

...left end and is completely horizontal. The second rope is attached to the left end and is completely vertical. The third rope is attached to the right end and makes an angle of 40.0 degrees with the horizontal. What is the tension in these ropes when a 700N person stands 0.5 meters from the left end?

2007-11-29 15:17:15 · 1 answers · asked by Anonymous in Physics

2007-11-29 15:15:12 · 5 answers · asked by myfrigginjunklist 2 in Astronomy & Space

I simply cannot figure out how to draw this graph without crossing at least one time. please help!

2007-11-29 15:14:15 · 1 answers · asked by Smokey M 1 in Mathematics

2007-11-29 15:12:19 · 15 answers · asked by Gem 1 in Earth Sciences & Geology

29 increased by F is -2.




How would I write an equation or inequality, and solve it?





and same goes for this one:

7 is greater than or equal to the quotient of b and 16.

2007-11-29 15:09:57 · 13 answers · asked by Anonymous in Mathematics

when i saw an orbit my master said you are having eagle's eye view. i didn't ask him explanation for it. now asking what is eagle's eye view?

2007-11-29 15:08:52 · 4 answers · asked by Tamil from Vellore 7 in Astronomy & Space

so my sister was in her room and saw a spider
(which i am deathly afraid of) and she said it was completety white with a black butt or somethign like that..
i was wonderng is that a poisonous spider to humans?!?1

2007-11-29 15:07:28 · 4 answers · asked by prettygirl 2 in Zoology

If sound it spread evenly through the same medium, and it will still go through a different one at a different speed, then wouldn't that mean that the sound of every single thing doesn't go away.. the vibrations are just so small that the human ear cannot pick it up.
The reason I ask is that EVENTUALLY that would mean that the sound would continually build up and I think that is the High-Pitched noise that people hear when there is supposed silence.

At least... when I don't hear anything else in particular I hear a high-pitched noise....

2007-11-29 15:05:24 · 3 answers · asked by Brodan Victa 3 in Physics

Two blocks of respective masses m1=0.35 kg and m2=7.5 kg stand without motion on a frictionless horizontal table. A spring is compressed between the two blocks, but the blocks remain motionless because they are tied to each other by a cord. The masses of the spring and the cord are not negligible compared to the masses of the blocks. Once the system is set up, the cord is burned by a match and the blocks are pushed apart by the spring. Once the spring is completely relaxed, it detaches from the m1 block, and the blocks continue to move away from each other at respective speeds v1 and v2. Given m1=0.35 kg, m2= 7.5 kg, v2= 5.9 m/s but v1 is not given. How much energy was stored in the compressed spring before the cord was burned?

2007-11-29 15:05:10 · 1 answers · asked by Ron108 1 in Physics

Describe the general trends in acid base character of the oxides of the elements in the third period (Na to Ar). Give examples of one acidic oxide and one basic oxide and show wiuth equations how these oxides react with water.

2007-11-29 15:03:39 · 2 answers · asked by moviefan254 1 in Chemistry

alright so you know when your in english class and you get really bored talking about shakespeare? yea well i had one of those and i thought

statistically speaking, are left handed people smarter than right handed people? (higher iq or any other smartness testing thing)

and the use of one hand more than the other... is that genetic?
because i got bored and i decided i wanted to "train" my left hand to write better the whole class - i wrote the whole alphabet down in half an hour NEATLY!!!! =D

ok well yea any answers?

2007-11-29 15:03:36 · 8 answers · asked by Anonymous in Biology