Science & Mathematics - 31 December 2007

Im from New York so the ball drop in Times Square is the right time for me but what do other time zones do for new years. does each major city have its own ball drop? or do they just celebrate it without a ball drop

2007-12-31 16:39:10 · 2 answers · asked by bkvaluemenu1 3 in Geography

Found this and thought it was odd, an earthquake killed the same number of people in 1138 as did the 2004 tsunami, check this out, weird huh?
10. Aleppo Earthquake - 1138, Syria [Deaths: 230,000]
Aleppo is located along the northern part of the Dead Sea Transform system of geologic faults, which is a plate boundary separating the Arabian plate from the African plate. The earthquake was the beginning of the first of two intense sequences of earthquakes in the region: October 1138 to June 1139 and a much more intense series from September 1156 to May 1159.

The worst hit area was Harim, where Crusaders had built a large citadel. Sources indicate that the castle was destroyed and the church fell in on itself. The fort of Atharib, then occupied by Muslims, was destroyed. The citadel also collapsed, killing 600 of the castle guard, though the governor and some servants survived, and fled to Mosul.
Number of lives lost to 2004 tsunami: 230,000

2007-12-31 16:37:01 · 5 answers · asked by know it all 3 in Earth Sciences & Geology

i have a orange tree that produces great tasteing oranges.If i graft from it and grow a new tree, will it produce the same great fruit?

2007-12-31 16:35:09 · 2 answers · asked by Anonymous in Botany

its in california

2007-12-31 16:30:14 · 3 answers · asked by danny d 1 in Geography

Numeric Response

25. If the hydronium ion concentration is 10M, what is the pH of the solution?

26. If [OH] = 1 10M, what is the pH of the solution?

27. What is the pH of a solution with a concentration of 0.01M hydrochloric acid?

Short Answer

28. Use the information below to calculate ΔH for the following reaction: 2NO(g) NO(g)

N(g) + 2O(g) 2NO(g) ΔH = 67.7 kJ
N(g) + 2O(g) NO(g) ΔH = 9.7 kJ

29. What is the hydronium ion concentration if the pH is 3.7?

30. What is the pH if the hydronium ion concentration is 6.8 10M?

Problem

31. How much heat is absorbed by 15.5 g of water when its temperature is increased from 20.0°C to 50.0°C?

32. How much energy is released when 500g of water vapor at 1000C condenses to form liquid water at the same temperature?

2007-12-31 16:28:59 · 4 answers · asked by Kathy Miller 1 in Chemistry

2007-12-31 16:28:09 · 10 answers · asked by 6th Finger 2 in Biology

A rectangle is inscribed in the triangle bounded by the x-axis and the lines whose equations are 3x+4y-24=0 and 3x-2y+12=0. Express the area of the rectangle as a function of the height and find the height for which the area is largest.

how do i do this and what does it mean by expressing as a function?

2007-12-31 16:27:33 · 3 answers · asked by Dusk 1 in Mathematics

2007-12-31 16:24:25 · 3 answers · asked by Future 5 in Physics

add with tax

2007-12-31 16:23:21 · 4 answers · asked by --- 2 in Mathematics

Is it 1 pint no matter what you donate; plasma, platelets, whole blood?

2007-12-31 16:13:58 · 10 answers · asked by Anonymous in Medicine

How do you know if a compound is polar or nonpolar??
ie: TeF4

2007-12-31 16:12:08 · 4 answers · asked by sarah 2 in Chemistry

1.) √4x²+4y²
2.) √x²-6x+9
3.) ³√a³+3a² b+3ab² +b ³
4.) √12a/x² + 4b/x

please help me i cant understand this

2007-12-31 15:34:28 · 2 answers · asked by Anonymous in Mathematics

i need help this is very difficult

2007-12-31 15:30:20 · 3 answers · asked by BUGGZ 3 in Mathematics

Steven has 100 ft. of fencing and wants to use it all to enclose a garden area. He wants the area to have the largest area possible. What will the perimeter of the garden be?
*****Tell me the steps on how to do this problem*****
********************Thanks in advance*******************

2007-12-31 15:10:18 · 5 answers · asked by ♥♪Kelly♪♥ 1 in Mathematics

2007-12-31 15:08:41 · 2 answers · asked by wik 2 in Physics

Find d^2y/dx^2 for y=(3x^2-1)^3

2007-12-31 15:05:48 · 2 answers · asked by Anonymous in Mathematics

I'm just wondering because I am on house arrest with two bracelets one to detect alchohol consumption and another for gps tracking. I don't want to get in trouble for wearing cosmetics.

2007-12-31 15:05:03 · 7 answers · asked by TechGurl 2 in Other - Science

If y = 1/1-x, find y', y", y''' and guess a formula for d"y/dx"

2007-12-31 15:02:48 · 4 answers · asked by Whats the Scoop? 2 in Mathematics

You are visiting New York City and are allowed to travel to the top of the Empire State Building. You're curious to know how tall the building is and, rather than research the height of the building, you decide to put your Algebra 2 skills to good use and calculate the height of the building by experimenting. You spit over the edge of the railing (by letting the spit dangle and drop, thus imparting no initial velocity) and time how long it takes it to reach the ground. If it takes 8 1/8 seconds to land, how tall was the building?

This is a different type of problem. Haven't worked with these in class yet. We were supposed to figure it out over vacation.

2007-12-31 14:56:35 · 6 answers · asked by Merissa[Danielle] 2 in Mathematics

Static Physics of stationary objects has a string theory of its own. A famous Physicist developed it. Can you name the Physicist and the Theorem his string theory is a part of?

2007-12-31 14:55:15 · 1 answers · asked by Anonymous in Physics

I often have to go to work very early in the morning and have noticed that it rarely rains at about 5 a.m. but will rain, if it is going to, later in day.

Also why does it very rarely rain continuously for more than one day?

(These details are for the Midlands in the U.K.)

2007-12-31 14:54:10 · 13 answers · asked by davee52uk 2 in Weather

a sum of money was shared between mr and mrs lin in the ratio 2:5. if the sum was shared in the ratio 5:2 instead, mr lin would receive $600 more. find the sum of money. please tell me how you got it and what you got as the answer. thanks.

2007-12-31 14:49:32 · 5 answers · asked by Withme989 1 in Mathematics

2007-12-31 14:49:07 · 2 answers · asked by Anonymous in Astronomy & Space

2007-12-31 14:47:41 · 4 answers · asked by cmf242004 2 in Mathematics

2007-12-31 14:46:53 · 14 answers · asked by B Rizzle 3 in Astronomy & Space

Solve the system by addition. 2x – 4y = 7 4x + 2y = 9

2007-12-31 14:44:02 · 8 answers · asked by cutter1890 1 in Mathematics

the ratio of the number of boys to the number of girls in a group of students is 2:3. if 1/4 of the boys and 1/3 of the girls wear glasses, find the ratio of the number of girls who wear glasses to the number of boys who wear glasses. please tell me the answer & how you got it. Thanks.

2007-12-31 14:33:51 · 12 answers · asked by Withme989 1 in Mathematics

2007-12-31 14:32:57 · 2 answers · asked by Sayuri 1 in Weather

I am taking ultram 200 mg once a day with 800 mg skelatin 1 a day, singular 20mg -and 300mg wellbutrin XL, nexium 20 mg, and asocal 2400mg a day, and I was also added onto prednisone 60mg a day and then a decongestant and an antibiotic. Whats bothering me is I am very hungry all the time, and the most annoying side effect is rapid heart beat. NOT TO mention that the pain med is not helping my injured back. The other meds are for asthma, allergies, sinus infection, and
antidepressant. I am due to return to work from vacation on the 2nd, but I don't think its going to go to easy. I feel bloated, and nervious, and drugged.... not to mention I have a headache with all this..(must be the infection) can anyone tell me if its too much meds? can this be whats causing the
dizziness, palpatations, etc? what would you do?

2007-12-31 14:30:55 · 3 answers · asked by my-stang 3 in Medicine

Where can I find a list of temperatures of central FL since records were kept-and this is kind of a 2 fold question,IS FLORIDA GETTING HOTTER, sure seems so to me, and is this just a cycle thing?

2007-12-31 14:28:08 · 3 answers · asked by ThePig 1 in Weather