Science & Mathematics - 30 August 2007

The gravitational force between two objects depends on the mass of the objects and the inverse of the square of the distance between the objects. But what creates this force, why to matter in the space attract each other ?

2007-08-30 03:17:09 · 4 answers · asked by spankerpoligoli 1 in Physics

What is the volume of the container, using a density of 1.00 g/cm^3? (in cubic cm)

2007-08-30 03:13:33 · 7 answers · asked by danz2289 1 in Chemistry

What makes them different means where a RTD is used and where a thermocouple???

2007-08-30 03:04:05 · 4 answers · asked by Anonymous in Engineering

9 ( ) (70.5 ÷ 0.5) = 1,269

use check box place of ()

2007-08-30 03:00:14 · 4 answers · asked by neal_108_999 1 in Mathematics

A sine wave has a peak value of 100V. What are the average value and rms value?

2007-08-30 02:59:10 · 4 answers · asked by Anonymous in Engineering

One, or more than one?

2007-08-30 02:57:02 · 2 answers · asked by RogerDodger 1 in Mathematics

how many seconds is the period of a sinusoidal radiation from a station FM100 at 100 MHz ?

2007-08-30 02:54:43 · 2 answers · asked by Anonymous in Engineering

I want to find a telescope from which i can see the moon perfectly, planets etc. $500 max is there one?

2007-08-30 02:50:34 · 8 answers · asked by Anonymous in Astronomy & Space

the wasp would have his wings tangled in a web.

2007-08-30 02:46:14 · 12 answers · asked by Jake L 3 in Zoology

I need the scientific answer for my school project

2007-08-30 02:42:54 · 7 answers · asked by Anonymous in Earth Sciences & Geology

I tried a lot but couldn't solve these questions, i'd be really glad if u could help me with at least one question among these:
(ATLEAST ONE !!)

1) 20 mL of a solution of mixture of NaOH and Na2CO3 was first titrated with phenophthalein and M/10 HCl. 15 mL of HCl was required for the end point. After this methyl orange was added and 5 mL of same HCl was again required for next end point. Find out amounts of NaOH and Na2CO3 in the mixture.

2) 44.4 g mixture of Ag2CO3 and NaHCO3 on strongly heating gives a certain volume of gases. The volume of gases at STP reduced by 4.48 litres when treated with KOH. The volume is further reduced by 1.12 litres by treatment with alkaline pyrogallol. Find the % composition of Ag2CO3 and NaHCO3 in the mixture.

3) What volume of 0.1M Mn3O4 solution will be required to completely react with 20 mL of 0.01 M solution of Fe3O4 in acidic medium of H2SO4 such that all the Mn3O4 is converted into MnSO4 & Fe3O4 converted to Fe2(so4)3 ??

2007-08-30 02:40:44 · 1 answers · asked by dren 3 in Chemistry

I have two friends in Krishna/ believers more than 10 years.
When we meet they always talk about God Krishna knowledge
for the world.I like this much as they are very good people and I think their religion is very true and working.
Sometimes when we talk I can somehow visualise the ashram they go on saturdays- they are not afraid of this mutual clairvoyance-they say this is a sikhi but they do not know if this comes to me from a spiritual teacher and for what is being given.
Is this a vision telepathy?

2007-08-30 02:40:23 · 4 answers · asked by ThanksBelit 2 in Paranormal Phenomena

2007-08-30 02:39:12 · 7 answers · asked by Bill W 【ツ】 6 in Astronomy & Space

A. Continuous
B. Discrete

2007-08-30 02:35:07 · 3 answers · asked by zginder 3 in Mathematics

Please name it and function.

2007-08-30 02:33:58 · 3 answers · asked by Rofaif 1 in Engineering

I am starting to get interested in Astronomy and I don't understand what all these new terms mean, mainly the difference b/w the regular years and light years. How many miles is a light year?

2007-08-30 02:33:28 · 13 answers · asked by lala girl 4 in Astronomy & Space

2007-08-30 02:29:44 · 1 answers · asked by bhavani g 2 in Physics

2007-08-30 02:26:26 · 9 answers · asked by SID 1 in Astronomy & Space

I'm not so sure if this is actually a question but are there any empaths out there on the internet who can read emotions.

2007-08-30 02:26:18 · 4 answers · asked by Just Brandon 5 in Paranormal Phenomena

2007-08-30 02:23:47 · 6 answers · asked by mandy t 1 in Medicine

Is it possible to see Planets like Mars or Saturn from Earth?

2007-08-30 02:22:12 · 6 answers · asked by Just Brandon 5 in Astronomy & Space

We often hear from many reports that the scientist has found object million light years away. How's that possible while we all know that the telescope itself has just been 1 to 5 years old. Is the speed of telescope sight range faster than the speed of light?

2007-08-30 02:21:57 · 9 answers · asked by Tony 1 in Astronomy & Space

well i don't want to sound spooky.

just tell me if u believe and y do u?

it would help if u could support ur claim

personal experiences welcome :)

2007-08-30 02:20:05 · 12 answers · asked by Zenews Labrint 3 in Astronomy & Space

i know there's a difference between them, but i really can't pinpoint what it is exactly...can you give and example the difference between the two algorithm is really obvious?

2007-08-30 02:18:29 · 1 answers · asked by ioLLo 2 in Mathematics

How do I complete the square for this expression:

(x^2 + 10x)

2007-08-30 02:16:50 · 4 answers · asked by chrizzle08 2 in Mathematics

3.14.....

2007-08-30 02:14:05 · 22 answers · asked by Tzahy Z 1 in Mathematics

I've heard about Absolute Zero and it sounds really cool. I know what it physically is: 0 K and something like -245 C.

I know some of the things that happen:
Superfluidity, superconductivity, and the air liquefies, is that right. And can someone explain that. I've also heard some rumors about anigravity.

How can the air liquefy? If we ever supposively reached Absolute Zero, would the air completely solidify? I'm looking for an expert.

Thanks!

2007-08-30 02:11:03 · 7 answers · asked by xf in a :)x[ 4 in Physics

and travels toward San Francisco at 60 mi/h. If the two cities are 380 miles apart, how many hours will it take for Mary to meet Phil? Write an algebraic equation and solve.

2007-08-30 02:07:23 · 7 answers · asked by jdub 1 in Mathematics

a. law of sines
b. basic trig
c. law of cosines
d. pythagreans therom

how would you figure out which one to use ??

2007-08-30 02:06:31 · 6 answers · asked by Anonymous in Mathematics

Show how you should connect nine 100Ω resistors each rated at 10 watts so that the combination will still be equivalent to 100Ω but with a much higher power rating of 90 watts.

2007-08-30 02:05:54 · 5 answers · asked by andrew 1 in Engineering