Science & Mathematics - 3 November 2007

Jupiter's four large moons - Io, Europa, Ganymede, and Callisto - were discovered by Galileo in 1610. Jupiter also has dozens of smaller moons. Jupiter's rocky, and volcanically - active moon Io is about the size of Earth's moon. Io has a radius of about 1.82 x 10^6 m, and the mean distance between Io and Jupiter is 4.22 x 10^8m.

1) If Io's orbit were circular, how many days would it take for Io to complete one full revolution around Jupiter?

2007-11-03 10:04:30 · 3 answers · asked by Anonymous in Physics

I know organic compounds contain carbon, so in other words name some compounds that contain carbon.

2007-11-03 10:03:23 · 4 answers · asked by ajdrausal 2 in Chemistry

A sled with a mass of 135kg is frozen to a 20 degree slope with M static (the coefficient of friction) of .4 How much additional force is required to start the sled moving down the hill?

2007-11-03 10:03:18 · 1 answers · asked by Anonymous in Physics

2007-11-03 10:02:54 · 8 answers · asked by Anonymous in Earth Sciences & Geology

just wondering when was the last time someone saw one.

2007-11-03 10:01:46 · 6 answers · asked by Anonymous in Zoology

1. C6H12O6
2. KOH
3. C4H9OH
4. C6H14
5. HNO3
6. CH3OH

2007-11-03 10:01:14 · 4 answers · asked by Anonymous in Chemistry

2007-11-03 09:59:29 · 4 answers · asked by Anonymous in Botany

Please tell me if I am
correct here. Each human cell (with the exception of gametes) have 46
chromosomes. 1 chromosome = 2 chromatids. 1 duplicated chromosome = 2
chromosomes = 4 chromatids. With that said, when a cell wants to divide, it
has 92 chromatids with 46 going to each "new" cell at mitosis.

2007-11-03 09:57:33 · 2 answers · asked by I am. 1 in Biology

If you lose your grip on a rapidly spinning merry-go-round and fall off, in which direction would you fly? Explain.

2007-11-03 09:56:22 · 7 answers · asked by Anonymous in Physics

At noon, ship A is 20 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 25 knots. How fast (in knots) is the distance between the ships changing at 7 PM? (Note: 1 knot is a speed of 1 nautical mile per hour).

2007-11-03 09:55:59 · 2 answers · asked by alawrence108 1 in Mathematics

2007-11-03 09:53:09 · 3 answers · asked by Nerd RockR 2 in Earth Sciences & Geology

2007-11-03 09:51:08 · 1 answers · asked by D J 1 in Chemistry

can anything bad happen you spray hairspare on a liter flame. i did it and it made a big flame it was awsome.

2007-11-03 09:50:33 · 2 answers · asked by sbfsn 1 in Chemistry

So in my school the semester grade is as follows.

40% cardmarking 1
40% carmarking 2
20% Final Exam So i need to know the formula to see what grade I have to get on my final to get a certain grade in the class

2007-11-03 09:43:43 · 6 answers · asked by Anonymous in Mathematics

my daughter has a math problem that neither of us can figure out! if anyone can just give us some pointers as to how to get the answer, that would be great!!

one side of an equilateral triangle increased by 13 is 31 less than three times the other side. if the sides are measured in inches, what are the measures of the three sides of the triangle?

again, thanks!

2007-11-03 09:43:26 · 8 answers · asked by amanda 2 in Mathematics

can the fastest runner in sports jump higher than 18 feet (world record) and maybe reaching 30 feet in pole vault with a long enough pole?? how high might he get?

2007-11-03 09:35:57 · 2 answers · asked by Heavy-Metal123 3 in Physics

I mean, in the sense that most humans are right handed. So, I would like to know if this is true of front and/or hind legs; which side occurs more often; does it affect the animal's ability to function in ADLs or it's learning ability.

2007-11-03 09:34:23 · 3 answers · asked by syrious 5 in Zoology

A population has a mean of 200 and a standard deviation of 50. A simple random sample of size 100 will be taken and the sample mean x ̅ will be used to estimate the population mean.

Show the sampling distribution of x ̅.

How do I show whether the sampling distributing of the sample mean is normal or not normal?!?

2007-11-03 09:34:17 · 2 answers · asked by Anonymous in Mathematics

1. What would happen if a "stable" strangelet was created?
2. What are these 2012 theories?
3. If they is intelligent life out there, wouldn't we have collected radio waves from other planets that have intelligent life created?

2007-11-03 09:28:59 · 1 answers · asked by Anonymous in Astronomy & Space

Robert is standing beside a parade, listening to the sound of a brass band. The speed of the sound in air is 330 metres/second. The band marches past Robert and off into the distance at a speed of 2.0 metres/second. The tuba is playing a note with a frequency of 96Hz. What frequency does Robert hear?

And please, refrain from being rude or vague. I don't even need the answer -- I'd much prefer someone explain this to me. In all other similar problems, they used the term "1000 compressions". How do I know how many compressions are made in this problem? Try not telling me how "simple" or "elementary" this problem is -- just answer the damn question. If you don't know what you're talking about, please just move along. For anyone wondering why this is in the Singles and Dating section, it's because this is (sadly) one of the more popular boards on Y!Answers.

Thank you!!!

2007-11-03 09:28:37 · 1 answers · asked by Anonymous in Physics

ayudenme con esto please

2007-11-03 09:28:08 · 8 answers · asked by Anonymous in Paranormal Phenomena

The circumference of a sphere was measured to be 70 cm with a possible error of 0.9 cm. Use differentials to estimate the maximum error in the calculated surface area. _____?

Estimate the relative error in the calculated surface area. ______?


Hint: The circumference of a sphere of radius r is C = 2 \pi r, and its surface area is A = (4pi)(r^2). Eliminate r first!

2007-11-03 09:26:34 · 3 answers · asked by Anonymous in Mathematics

2007-11-03 09:25:44 · 5 answers · asked by plasticbag 2 in Mathematics

I am asking someone with more knowledge than I to please refute these ridiculous assertions.
EVOLUTION IS A HOAX HERE Is PROOF TO ALL YOU ATHEIST?
are no transitional links and intermediate forms in either the fossil record or the modern world. Therefore, there is no actual evidence that evolution has occurred either in the past or the present.
Evidence #2
Natural selection (the supposed evolution mechanism, along with mutations) is incapable of advancing an organism to a "higher-order".
Evidence #3
Although evolutionists state that life resulted from non-life, matter resulted from nothing, and humans resulted from animals, each of these is an impossibility of science and the natural world.
Evidence #4
The supposed hominids (creatures in-between ape and human that evolutionists believe used to exist) bones and skull record used by evolutionists often consists of `finds' which are thoroughly unrevealing and inconsistent. They are neither clear nor conclusive even though evolutionists present them as if they were.

2007-11-03 09:23:32 · 3 answers · asked by ? 6 in Biology

2007-11-03 09:21:31 · 4 answers · asked by chris p 1 in Physics

2007-11-03 09:18:49 · 14 answers · asked by Anonymous in Paranormal Phenomena

I thought f-inverse didn't exist if f wasn't 1-1 but my homework doesn't think so. Any thoughts?

2007-11-03 09:17:23 · 2 answers · asked by UMRmathmajor 3 in Mathematics

I'm doing a project for my AT class where i have to find the risks of zoos. HELP!

2007-11-03 09:12:06 · 1 answers · asked by Shadow 2 in Zoology

Is there a science behind it?

2007-11-03 09:10:03 · 6 answers · asked by theamazingcoakley 2 in Earth Sciences & Geology

The volume flow rate in an artery supplying the brain is 3.00 10-6 m3/s.

(a) If the radius of the artery is 4.90 10-3 m, determine the average blood speed.

(b) Find the average blood speed at a constriction in the artery if the constriction reduces the radius by a factor of 3. Assume that the volume flow rate is the same as that in part (a).

2007-11-03 09:06:08 · 1 answers · asked by Unkown 2 in Mathematics