Science & Mathematics - 29 January 2007

2007-01-29 10:40:55 · 3 answers · asked by chapstickzz 1 in Biology

I am doing a prjoect and need research on colors that appeal to toddlers. The colors I'm using are blue, red, green, and yellow. Does anyone know of someplace that has information?

2007-01-29 10:40:51 · 4 answers · asked by MCScarface 1 in Other - Science

The simultaneous congruences are

2x congruent to 1(mod 3)
5x congruent to 6(mod 7)
3x congruent to 4(mod 8)

Please give any workings

2007-01-29 10:40:03 · 1 answers · asked by kewlguitarist 2 in Mathematics

2007-01-29 10:39:43 · 1 answers · asked by nicegoal27 1 in Chemistry

*9/4, 1 4/5, 1.7
*1, 4/2, 1.2
*0.7, 9/3, 2 3/4

2007-01-29 10:38:03 · 5 answers · asked by Anonymous in Mathematics

I have astigmatism in the left eye. I have been wearing contacts for 10 years and my vision has become much worse in the last 4 years and MUCH worse in the last year. I am now 27. I have difficulty driving at night and my vision is poor on the basketball court (the lights or the glossed flooring blurr my vision). My guess is either keratoconus or diabetic retinopathy. I want to rule out keratoconus because my condition seems to be unilateral (only in my left eye). Also, I haven't had a blood-sugar test (I'm doing that in 3 weeks) so my money is on D.R. Has anyone heard about a case like this? Any help would be great because I'm starting to think I may lose vision completely one day if this keeps up. I also fear corneal transplantation (AAAHHH!!))) :)

2007-01-29 10:37:37 · 6 answers · asked by Matthew T 1 in Medicine

A chemist observes that a particular compound decays continuously, and notes that 90% of the initial amount of the compound remains after 1 hour, 10 minutes. Estimate the half-life of the compound to the nearest minute.



could someone please show me step by step on how to do this?

2007-01-29 10:37:34 · 8 answers · asked by You Betcha! 6 in Mathematics

2007-01-29 10:35:15 · 4 answers · asked by connorlovenoodles 2 in Geography

2007-01-29 10:33:28 · 6 answers · asked by Vance's girl 2 in Chemistry

2007-01-29 10:32:34 · 2 answers · asked by Bubbles 1 in Biology

2007-01-29 10:31:29 · 2 answers · asked by Mark W 1 in Astronomy & Space

reference the movie CONTACT with jodie foster and matt mchanohay

2007-01-29 10:31:10 · 5 answers · asked by tiracs69 2 in Astronomy & Space

I am wondering what the term "clinical" means in the following situations.

Professor of Medicine vs. Clinical Professor of Medicine

Associate Professor of Medicine vs. Associate Clinical Professor of Medicine

Assistant Professor of Medicine vs. Assistant Clinical Professor of Medicine

2007-01-29 10:30:43 · 5 answers · asked by stewartspivak 1 in Medicine

2007-01-29 10:30:09 · 2 answers · asked by dj t 1 in Physics

2007-01-29 10:30:04 · 5 answers · asked by Moesha Timber 1 in Astronomy & Space

2007-01-29 10:28:59 · 5 answers · asked by Volleyball_Playa_06 1 in Biology

It seems that everything is going wireless these days by using radio and infrared communication. Bluetooth is being put into most portable electronics,everyone including kindergarteners carry cell phones, laptops are all wi-fi ready, wireless mice and keyboards are sitting untethered on people's desks, but we are all still plugged in to the wall. (I know laptops break free from time to time, but as they get older, they tend to get plugged in more often.)

Will we see wireless transmission of power to our appliances any time soon? I realize that this has been done over very short distances, like rechargeable toothbrushes and recharging pads for portable electronics, but I want to know for distances from 1-50 feet. Or would it be too dangerous to have such huge quantities of power floating through the air? If we used directed energy, would people get fried it they crossed the beam? What do you think?

2007-01-29 10:28:19 · 6 answers · asked by Kyle 2 in Engineering

not being self centered its for skool

2007-01-29 10:28:16 · 13 answers · asked by Monkeymoomoo 2 in Earth Sciences & Geology

Here's my procedure on "Are dogs red-green color blind?":

1.) Take black and white photos of an assortment of colored paper to see what shade they are in black and white.

2.) Gather four jars. Wrap two pieces of paper that are the same color around two of the jars.

3.) Place a green background on a wall. Do same for red on next test.

4.) On the the other two jars, wrap a piece of green paper around it and red around the other.

4.) Put a treat in one jar and place the same colored jars on the ground. Train the dog to pick one jar.

5.) After dog is trained, switch one of the same colored jars with a green one. If the dog does not pick the green one the majority of the time (100 tests), then s/he cannot identify the jar. Therefore, not being able to SEE the color green.

6.) Repeat steps 1 - 5 except use the different colored jar being the color red.


Does this sound correct to you? If not, please elaborate on your idea. Thanks!

2007-01-29 10:28:02 · 3 answers · asked by NONAME 2 in Zoology

The sum of two numbers is 148 and their difference is 16. What are the numbers?

2007-01-29 10:27:37 · 7 answers · asked by larrylnguyen 1 in Mathematics

2007-01-29 10:27:12 · 8 answers · asked by Anonymous in Physics

i need alot of ansewrs

2007-01-29 10:25:34 · 4 answers · asked by dj t 1 in Other - Science

i'm doing some paperwork on this stuff and i need ideas...know any animals/plants with specific adaptations to the water level in their natural habitat? forget the camel and the cactus...any better ones? and pls specify the adaptations...thanks in advance

2007-01-29 10:25:31 · 3 answers · asked by gabriella 3 in Biology

you are 27m from the bus.
you run your max speed of 12 m/s and at that moment, the bus begins to pull away.
the bus has a constant acceleration of 1.11 (m/s^2) and continues to accelerate until it reaches its speed of 15m/s when it travels at a constant speed.

how long does it take the bus to reach your running speed?

write an equation for your position vs. time and one for the position vs. time of the bus...

ANY help would be REALLY appreciated...

2007-01-29 10:24:21 · 2 answers · asked by kacee 1 in Physics

How can you figure out the factoring when no numbers are involved?
Please help!

2007-01-29 10:23:31 · 4 answers · asked by Anonymous in Mathematics

How do I use quotient rule to show (d/dx)(cot(x)) = -cosec(x)

2007-01-29 10:22:56 · 4 answers · asked by changchih 7 in Mathematics

I'm in eighth grade chemistry & physics and this is the only problem i got left, it's a physics one,(acceleration, terminal velocity, gravity, stuff like the stuff on the worksheet...etc.), and there's no word bank, so any help is appreciated. I was thinking "projectile", but then they'd have to add an "a" after "is". Thx in advance, and please answer quickly.

2007-01-29 10:22:39 · 24 answers · asked by Anonymous in Physics

dosent have to be perfect forget about the wight of the jar

2007-01-29 10:20:55 · 8 answers · asked by jo 2 in Mathematics

How would you begin to integrate this problem?
cos^3(x) * sqrt( sin (x) ) dx

Thanks!

2007-01-29 10:20:38 · 5 answers · asked by AlaskaGirl 4 in Mathematics

How can I solve this..and where do I start?

cant I do this: 2x^2+11x=51 then factor out a X

2007-01-29 10:17:47 · 10 answers · asked by lsubetty 2 in Mathematics