Science & Mathematics - 9 January 2007

A river flows towards south at 10 km/hr.Wind blowing south at the speed of 30 km/hr gives rise waves on river surface these waves travels at 20 km.hr relative to the water.The waves are observed skindiver,a balloonist in air above the river and a fishman on the bank.What is the ratio of frequencies the three persons observed

2007-01-09 19:29:23 · 1 answers · asked by Ankur 1 in Physics

How does a molecule of oxygen travel through your nose, down to your feet, and out your mouth?

2007-01-09 19:28:27 · 18 answers · asked by Jay 1 in Biology

34x21=n+34 now find the equation of n

2007-01-09 19:26:22 · 7 answers · asked by marie b 1 in Mathematics

I just need it! and please put the details

2007-01-09 19:23:45 · 13 answers · asked by sodium hydroxide 2 in Earth Sciences & Geology

John rode 70 miles on his bike in 4 1/2 hours. He started out at the rate of 20mph; however, after a while he got tired and reduced his speed to 12mph. How far did he travel before reducing his speed?

2007-01-09 19:23:12 · 5 answers · asked by Anonymous in Mathematics

What is the cause of these high temperatures in New York? Are we seeing record temperatures in New York for this time of the year? Will this be a bad winter, even though It will start late?

2007-01-09 19:22:44 · 4 answers · asked by RDogg1234 2 in Weather

2007-01-09 19:21:34 · 9 answers · asked by PIERCED11 2 in Weather

find the extreme values of the function and where they occur

y= x^3 -2x +4

2007-01-09 19:21:22 · 4 answers · asked by carrotrabbitzz 1 in Mathematics

2007-01-09 19:20:47 · 6 answers · asked by V-man 1 in Earth Sciences & Geology

I did a lab about Voltaic Cells, and the predicted voltages for the cells are different from the predicted voltages. On the other hand, one of the questions on the lap paper is “suggest reasons for any discrepancy between the predicted voltages for the cells and the observed voltages.”
I have tried to find the reasons, but I can’t find any. Could you please help me?

2007-01-09 19:16:37 · 3 answers · asked by Kameliya 2 in Chemistry

2007-01-09 19:16:35 · 11 answers · asked by arun 1 in Geography

Is the universe like a piece of paper; with edges, a start and an end. Or is it ongoing? Now, we are in the universe, so what is the universe in? Believe it or not, this is a question I had asked my mom at the age of 6.

2007-01-09 19:13:18 · 7 answers · asked by Anonymous in Astronomy & Space

2007-01-09 19:12:32 · 12 answers · asked by SIJO M 1 in Earth Sciences & Geology

2007-01-09 19:10:56 · 4 answers · asked by asal1064 1 in Earth Sciences & Geology

2007-01-09 19:10:20 · 15 answers · asked by Anonymous in Astronomy & Space

if something were to figuratively compress itself into the smallest posible object, meaning there is no space between particles. then the object would have infinite mass and infinite density, so would this create a black hole?

2007-01-09 19:05:16 · 5 answers · asked by skiguy 1 in Astronomy & Space

2007-01-09 19:02:10 · 5 answers · asked by ndikuwen 1 in Geography

everytime i put water inside the freezer, when it becomes ice, it expands. isn't it when a substance reach a low temperature, the substance contracts?

oh, i remember. when it turns to ice, it has bubble-like something inside.

2007-01-09 18:56:06 · 10 answers · asked by emperor_beethoven 2 in Physics

2007-01-09 18:56:06 · 8 answers · asked by lollybolly 2 in Earth Sciences & Geology

identify the critical point and determine the local extreme values.
y=xroot4-x^2

2007-01-09 18:51:20 · 4 answers · asked by Anonymous in Mathematics

Did our great Amstrong REALLY landed on the Moon. An answer with a little bit of reasons to believe would be fine.

2007-01-09 18:46:41 · 5 answers · asked by wilddude 1 in Astronomy & Space

and would this increase in concentration increase the chances of acid precipitates? please quote the source if possible

2007-01-09 18:45:31 · 2 answers · asked by chicken_run98228 1 in Chemistry

Pharmacy course for Malaysia University and college. Thank u!

2007-01-09 18:41:58 · 5 answers · asked by Anonymous in Chemistry

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Physical evidence, not words, but actual PROOF.
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2007-01-09 18:40:21 · 6 answers · asked by Anonymous in Physics

2007-01-09 18:39:40 · 9 answers · asked by chikka 1 in Astronomy & Space

2007-01-09 18:33:52 · 8 answers · asked by KALP 1 in Mathematics

can it increase the size of my penis

2007-01-09 18:29:57 · 10 answers · asked by Anonymous in Medicine

2007-01-09 18:29:31 · 19 answers · asked by prakash k 1 in Geography

How do I find the value of 1n 6.5? and 1n 3/8?

2007-01-09 18:26:12 · 3 answers · asked by Anonymous in Mathematics

With out gravity we would fly apart. Gravity is the force that keeps everything together in the universe. There is no such thing as zero gravity in our universe because even a atom produces enough gravity to keep it from splitting.

At the start of the universe there was the singularity. Because it was a singularity everything was uniform so there was zero gravity. It was this zero gravity that caused the big bang as all the energy that was held together with gravity is now unleshed.


There is no doubt in my mind whats so ever that a universe is created by blackholes seperating another universe. At the instant of seperation a big bang occurs as a zero G enviroment can't contain the energy.

2007-01-09 18:23:38 · 7 answers · asked by aorton27 3 in Astronomy & Space