Science & Mathematics - 17 January 2007

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2007-01-17 17:24:47 · 1 answers · asked by Anonymous in Mathematics

2007-01-17 17:24:32 · 17 answers · asked by Jason M 3 in Astronomy & Space

If you have a cylinder with say r = 2, and its mass is uniformly distributed, would it get to the bottom of an inclined plane at a different time then a cylinder with r = 4? I think so, but I'm not totally sure.

2007-01-17 17:24:23 · 9 answers · asked by califrniateach 4 in Physics

Ex: The circumference of a bottle is 10". How much overlap do I allow for glue? Is there a website out there that can help? Looking to buy bulk labels.

Thanke-sai

2007-01-17 17:24:14 · 1 answers · asked by yeperdoo 2 in Engineering

Is there any platinum at all in sterling silver?

2007-01-17 17:17:05 · 6 answers · asked by Anonymous in Chemistry

2007-01-17 17:14:25 · 6 answers · asked by JoseBahamonde 2 in Engineering

I 2-3x I > 8

When do I flip the sign?

2007-01-17 17:14:06 · 4 answers · asked by lirael1019 1 in Mathematics

2007-01-17 17:10:17 · 14 answers · asked by ? 3 in Biology

I know it's 22.4litres at stp and 24.47litres at 25 degs C, but what about 20 degs C?
Got any references to back up the figure?
Thanks!

2007-01-17 17:09:24 · 3 answers · asked by dkska; 2 in Chemistry

other algorithims are okay to use.

2007-01-17 17:07:05 · 5 answers · asked by Anonymous in Mathematics

2007-01-17 17:06:09 · 7 answers · asked by Car 1 in Mathematics

for example a 10,000 watt amplifier would equal how much horsepower.

2007-01-17 17:05:41 · 10 answers · asked by ? 1 in Physics

2007-01-17 17:04:41 · 4 answers · asked by Car 1 in Mathematics

When Epsom salt crystals MgSO4 are added to water it make water cold(er), Why?

2007-01-17 16:58:10 · 4 answers · asked by Anonymous in Chemistry

problem:12meters cubed = x centimeters cubed


::::I'm not even sure how to approach this problem...

thanks in advance (chemistry is my worst nightmare)

2007-01-17 16:57:34 · 4 answers · asked by Anonymous in Mathematics

1. Find the center (h,k) of the circle with the equation x^2+y^2-6y=7

2. How would you graph (y-1)^2=6(x+2) If I could have you show me step by step process and a very clear explanation on this particular problem, that would be great.

3. How do I find the standard form for the equation of the hyperbola whose center is (0,0), which has vertices's at the points (-6,0) and (6,0), and which passes through the point (10,4).

4. Here is another, find the equation of the hyperbola whose vertices's are at (3,-1) and (9,-1), and which has a focus at (1,-1).

Thanks to all who answer sincerely

2007-01-17 16:56:00 · 2 answers · asked by dallin.harmon 1 in Mathematics

I am currently working on a sci-fi novel that takes place in a city state (Santa Fe) about 2009 years from now (4016) It's about a group of some Nobles' 19 year old daughters and other people being hunted down by a communist agency, at the same time they discover evidence of a secret society working on a resurrection project. I am pretty good with the writing itself, but am having some major difficulty introducing the story in a "non-boring" fashion. Any opinions or suggestions?

2007-01-17 16:54:52 · 6 answers · asked by Anonymous in Other - Science

For example K, Fe, Cu, Na...atoms sizes compared to each other.

2007-01-17 16:51:08 · 4 answers · asked by Gideon 1 in Chemistry

2007-01-17 16:48:19 · 4 answers · asked by r_rvaldez 2 in Chemistry

Where does photosynthesis occur in onions and potatoes?What is the evolutionary significance of storing their starches underground? (2 big things)

2007-01-17 16:46:11 · 9 answers · asked by Anonymous in Biology

2007-01-17 16:41:39 · 11 answers · asked by Car 1 in Mathematics

2007-01-17 16:40:50 · 7 answers · asked by pluto 1 in Medicine

what are they and how do you find them with a given data set?

2007-01-17 16:40:43 · 2 answers · asked by crazymexican169 2 in Mathematics

So a train is traveling near the speed of light, let's say 3/4 the speed of light (C), and a man fires a bullet on the train that travels to his perspective at 3/4 C. From someone standing outside the train the bullet should appear to travel at 1 1/2 C, but that would be impossible (Einstein). So the answer must be that each object (the bullet and the train) must travel at a combined speed of less than the speed of light. So each objects speed is limited to just less than 1/2 C. But, a ant (stretch your imagination here ) is traveling along the bullet at just less than 1/2 C. Giving him a speed of more than C which is impossible, so each objects speed must be even slower, around 1/3 C. But a gnat is traveling across the ants back...etc. If you combine the speed of MANY objects traveling within each other, you should eventually come up with a train that can't travel more than a mere crawl. Where is the flaw with this reasoning? This paradox seems to have a Zeno quality to it.

2007-01-17 16:40:13 · 9 answers · asked by jedi1josh 5 in Physics

2007-01-17 16:36:24 · 16 answers · asked by Christ' Soldier 2 in Mathematics

I DONT UNDERSTAND THIS AT ALL! SO PLEASE EXPLAIN IT WELL SO I CAN UNDERSTAND IT? DO WE JUST GUESS AND CHECK AND CHOOSE A COEFFICIENT>? i dont get this!!!!!!!!!!!!!!!!!!

2007-01-17 16:35:26 · 2 answers · asked by Christina G. 3 in Chemistry

1.A ball of mass 0.5 kg is rolling across a table top with a speed of 5 m/s. When the ball reaches the edge of the table it rolls down an incline onto the floor 1.0 meter below (without bouncing) What is the speed of the ball when it reaches the floor?

2. A hot whells car of mass 0.025 kg is traveling on a horizontal track with a velocity of 5.0 m/s. If the track suddenly turns upward, how high up the track can the car travel?

2007-01-17 16:35:03 · 4 answers · asked by xhbvi3tboix 3 in Physics

2007-01-17 16:34:49 · 12 answers · asked by Tony G 1 in Biology

2007-01-17 16:32:41 · 3 answers · asked by tps0301 1 in Engineering

Express 2,750,389 in scientific notation.
27.50389 x 10 5
275.0389 x 10 3
27.50389 x 10 6
0.2750389 x 10 7
2.750389 x 10 6

I really do need someones help if i dont learn this. My future depends on it. Thank you for your time.

2007-01-17 16:32:14 · 6 answers · asked by Anonymous in Mathematics