Science & Mathematics - 27 January 2007

My Neighbors Have Rats And i Have A Land Turtle And During Day Time When Take Our Turtle outside To Get Some Sun Do U Guys Think That The Rats That Go In Our Backyard Can Harm Our Turtle

2007-01-27 14:42:30 · 4 answers · asked by ¢Î§¢Ø 2 in Zoology

2007-01-27 14:42:30 · 2 answers · asked by Anonymous in Chemistry

I have seen a lot of the jeweler ones and thats not what I want. Im looking for something to help out my mother whos eyesight isnt as good as it use to be... Id like a handheld one and maybe one for reading thats at least a few times stronger than a normal one... any stores or sites would be great.

2007-01-27 14:41:22 · 4 answers · asked by Jessica 5 in Medicine

2007-01-27 14:40:14 · 6 answers · asked by Anonymous in Astronomy & Space

The price for admission to an amusement park is different for the children and adults. They offer two specials as a savings to families. For 3 children and 2 adults, the price is $21. For 2 children and 1 adult the price is $12.

a. write a system of equations using c as the variable for the price for children and a as the variable for the price for adults. solve this system of equations.

b. what is the price for children's admission?for adult admission?

2007-01-27 14:39:32 · 12 answers · asked by jenjen 3 in Mathematics

What instrument would be best for viewing the surface of a virus that is about 10 nanometers long? Email Me quick!

2007-01-27 14:38:20 · 5 answers · asked by bb761866 2 in Biology

what are some creative names for (angle and quadrilateral)

2007-01-27 14:35:57 · 7 answers · asked by Felicia F 1 in Mathematics

2H2(g) + O2(g) --> 2H2O(g) ΔH = −486.6kJ

a) A phase change is involved


b) Two moles of hydrogen gas react with one mole of oxygen gas to
produce two moles of liquid water


c) Energy is absorbed by the system, the reaction species


d) If the reaction takes place at constant pressure, q = −483.6 kJ


e) ΔH for reacting four moles of hydrogen gas with two moles of
of oxygen gas is −483.6 kJ

2007-01-27 14:34:38 · 2 answers · asked by Anonymous in Chemistry

Like professional chemist do different things than the chemistry major students? Students read lab manual, write reports or graph on excel. What do the chemist have to do in their daily work period?

2007-01-27 14:34:15 · 5 answers · asked by passive84 1 in Chemistry

2007-01-27 14:32:30 · 5 answers · asked by mhel 1 in Engineering

2007-01-27 14:26:04 · 25 answers · asked by classic_vintage20 1 in Medicine

with the inside wall being made of nothing but the mirrors used in police interrogations, so that you could see inside, but the mirror wouldn't reflect your image, and there were no objects of any kind that are visible, inside of the sphere, what would be displayed in the mirrors?

2007-01-27 14:24:53 · 5 answers · asked by Anonymous in Physics

A woman on foot leaves a restaurant heading west at noon. Three hours later, a man on a bicycle leaves the restaurant pedaling west at a rate of 12 miles per hour. At six o'clock that evening, a woman on a scooter leaves the restaurant driving west at a speed of 39 miles per hour. If the first woman was walking at a rate of 3 miles per hour, calculate the distances below.

There are three questions that need to be answered:

1: How far from the restaurant will the woman on foot be when the man on the bicycle reaches her?

2: How long will it take for the woman on the scooter to reach the woman on foot?

3. How far from the restaurant will the man on the bicycle be when the woman on the scooter reaches him?

Please answer!

im really stuck!! thx!

2007-01-27 14:23:10 · 5 answers · asked by Kasra 2 in Mathematics

what is the percent composition of sodium carbonate?

2007-01-27 14:22:19 · 2 answers · asked by moody 1 in Chemistry

dont just say that the colder water will freeze faster because it is already colder, this is not the right answer, but whoever knows this question for sure would you please answer, as i was researching this question, it said that hot water will freeze faster, why

2007-01-27 14:22:04 · 1 answers · asked by blue 2 in Biology

2007-01-27 14:21:58 · 10 answers · asked by princess 1 in Mathematics

Do some animals, for example dogs or cows, have different blood types from those of the same species?

2007-01-27 14:21:32 · 6 answers · asked by formystudies3 1 in Biology

If you can give me a website that would say the answer to this question that would be great.

2007-01-27 14:19:53 · 3 answers · asked by Tamsin 7 in Biology

Well, I am having a lot of trouble trying to find one easy way I can use to find range for all problems. I understand how to get domain, but range is just so hard!!

If you can show me the steps to these two problems, I'd GREATLY appreciate it!

---

g(t) = 3 - radical (t)

h(t) radical (3 - t) - 7

2007-01-27 14:18:00 · 3 answers · asked by Anonymous in Mathematics

surprisingly some people prefer this.

2007-01-27 14:17:55 · 26 answers · asked by dodge 1 in Other - Alternative

I know the answer is: y(2y+1)^2 (2y-1)^2 but I can't figure out the steps.

2007-01-27 14:17:02 · 4 answers · asked by Erin 2 in Mathematics

I've tried to the problem but i don't how (my teacher never explained and the book isn't very helpful)

A 100-mg technetium-99m sample is used in a medical study. How much of the technetium-99m sample remains after 24 hr? the half-life of technetium-99m is 6.0 hr

Thanks in advance!

2007-01-27 14:16:41 · 3 answers · asked by Mia16 3 in Chemistry

2007-01-27 14:16:03 · 8 answers · asked by Shobhana V 2 in Earth Sciences & Geology

2007-01-27 14:13:46 · 13 answers · asked by ash 1 in Mathematics

Please show the balanced equation of NaNO2 + H2SO4 and also show the balanced equation of the decomposition of the acidic product produced. Thanks

2007-01-27 14:12:36 · 1 answers · asked by james w 1 in Chemistry

A.) Truck 1=
B.) Truck 2=

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass(3,000 kg each) were involved in a rear-end accident at a stop sign. here is what you know:
Truck 1 approched the intersection from the top of a 22-meter hill.
Truck 2 was on a flat stretch of road directly in front of truck 1.
At the bottom of the hill, before braking for the stop sign, Truck 1 was going 20 m/s and truck 2 was going 35 m/s.
From the skid marks on the road you can see that truck 1 applied force on its brakes for 2 seconds, 80 meters before the stop sign.
There were no skid marks left by truck 2. The collision occured at the stop sign, where truck 2 had stopped.
After the collision, both trucks were moving together in the same direction at 10 m/s, before slowly rolling to a stop.
You must now push truck 2 using 1,000 N of force, 8 meters off the side of the road so no one else gets hurt.

2007-01-27 14:12:33 · 1 answers · asked by krysdizzle_2006 1 in Physics

I know pi is an infinite irrational number with no definite pattern. So how do we know what numbers are in pi? In what order? Is there any way to know for sure what pi is?

If so then couldn't people find a pattern, memorize it, and recite pi to an infinite amount of digits?

I think it's weird how we can just "pull" pi from nowhere...

2007-01-27 14:08:40 · 14 answers · asked by adamizer 2 in Mathematics

Would they sky be scorched? Ash everywhere? No oxygen? Battery acid oceans? How long would such nuclear winter last? How would Earth look from space? Months later, if ISS astronauts had to land for supplies, could they?

I ask this because I'm developing a story idea. If you could, please describe what nuclear winter would be like? How alien would it be?

2007-01-27 14:08:12 · 20 answers · asked by Smokey 2 in Other - Science

2007-01-27 14:05:04 · 2 answers · asked by mrs. jung yunho 4 in Medicine

Please! Anyone who could shed some light on this question or where I should look for the answer. Your help will be greatly appreciated.
Thank you

2007-01-27 14:01:09 · 1 answers · asked by Anonymous in Biology