Science & Mathematics - 5 February 2007

sum 1s but

2007-02-05 14:17:43 · 1 answers · asked by martinmm 7 in Astronomy & Space

Some one I know had a dream, but all that they could remember when they woke up was 223. This person has had personal psychic experiences, and has dreamt of numbers that have come true before.

2007-02-05 14:17:21 · 9 answers · asked by James S 1 in Paranormal Phenomena

2007-02-05 14:16:28 · 3 answers · asked by Anonymous in Chemistry

1) you are in a hot air balloon relative to the ground has a velocity of 6.0 m/s due east. you see a bird moving directly away from the balloon due north. The speed of the hawk relative to you is 2.0 m/s. What are the magnitude and direction of the hawks velocity relative to the ground?Express the angle relative to due east.

2)A golfer tees off and drives the ball 3.5 times as far as he would n earth, given the same initial velocities on both planets. The ball is launched at 45 m/s at an angle of 29 degrees above the horizotal. When the ball lands it is the same level as the tee. On the distance planet what are the aximum height and range of the ball?

i appreciate any help i can get, please show your work even if you can only help me with 1 of the 2 problems. thanks so much!

2007-02-05 14:16:22 · 1 answers · asked by wade 2 in Physics

i am reading the weather forecast. it says saturday it is going to have few showers but the temperature is a high of 55 degrees fahrenheit. can it still have a few showers? and also, i read the precipitation. it says the chance of precipitation is 30 percent. how can it still have a few showers

2007-02-05 14:16:19 · 5 answers · asked by Anonymous in Weather

Capacitor with a Capacitive Reactance of 21.21m ohm at 6.66KHz. Does this capacitor appear as a short circuit ?

2007-02-05 14:15:51 · 2 answers · asked by Vman 1 in Engineering

(b^2) ^-6
------------
b^-4

I have to solve this with positive exponets, how is that done?


THis division fraction problem is causing my trouble too.....

24m^4n^2 -8m^2n^3 + 4m^3n
--------------------------------------
4m^2n


Thank you for your help !!!

2007-02-05 14:13:24 · 6 answers · asked by CookFrNW 3 in Mathematics

how many grams of sugar would you need to have the same number of particles as 15.0 grams of table salt?

how exactly do i solve this? do i use avogadro's number as well?

2007-02-05 14:12:46 · 2 answers · asked by stephh<3 2 in Chemistry

Something that will change the world, but it doesn't have to be big

2007-02-05 14:12:02 · 5 answers · asked by ek lg 1 in Other - Science

where can i find more info on bermuda triangle.............

2007-02-05 14:11:55 · 4 answers · asked by princess 2 in Geography

23- 7.90+(-12.01)+9.14
24- 2/3+9-1/24
25- 7.23-(-2.34)-0.001
26- 7/15-1/120+3/4
27- -10-(-0.99)
28- (3-2.56)-(5.7+1.1)

2007-02-05 14:11:35 · 4 answers · asked by Anonymous in Mathematics

2007-02-05 14:11:04 · 14 answers · asked by Anonymous in Physics

In a state lottery, you must select 5 numbers (in any order) out of 40 correctly to win top prize.

Here is the question........How many ways can 5 numbers be chosen from 40 numbers?

I thought the answer would be: 40!/(40-5)! which equals 78,960,960. But the book says the answer is 658,008? I can't figure out how they got that number, maybe a book error??? Please help!

2007-02-05 14:10:17 · 4 answers · asked by Tom K 1 in Mathematics

this is out of chapter 10 section 7 how do u do it using ax^2+bx+c

2007-02-05 14:08:09 · 5 answers · asked by Shante R 1 in Mathematics

Here are the questions. Please, I've tried everything to figure out these problems!

((1.)) Nine consecutive odd whole numbers sum to 243. Find the sum of the first and last odd whole numbers in the nine-addend set.

((2.)) Tommy invited some friends and several cousins over for his birthday. Each friend is 9 years old, and each cousin is 11 years old. None of his cousins attend his school. If the sum of the ages of Tommy, his friends, and his cousins add up to 122, how many of Tommy's friends and how many cousins attended his party?

((3.))Which set of factors of the number 420 has the least possible sum? Which set of factors of 420 has the greatest possible sum? Be sure that the two sets of factors both have a product of 420.

((4.)) Find the greatest whole number that meets all the following conditions:

a. It is greater than 100.
b. It is less than 200.
c. It is 20 greater when rounded to the nearest 100 than when rounded to the nearest 10.

Please help! And thanks!;)

2007-02-05 14:07:50 · 8 answers · asked by Ironica 2 in Mathematics

Is it true? the moon are moving away from the earth 2 inch per year!!!

2007-02-05 14:07:44 · 6 answers · asked by hyaki ikari 2 in Astronomy & Space

i^-87
show your work

2007-02-05 14:07:39 · 4 answers · asked by Jay 1 in Mathematics

Length of a side

step by step pleaze

2007-02-05 14:06:09 · 3 answers · asked by boyz_inblu3 1 in Mathematics

flowers grow nekter it is a type of juice

2007-02-05 14:04:46 · 7 answers · asked by Kristin J 2 in Botany

http://i9.tinypic.com/2ym6s13.png

2007-02-05 14:04:35 · 3 answers · asked by Anonymous in Mathematics

You are in a hot-air balloon that, relative to the ground, has a velocity of 9.5 m/s in a direction due east. You see a hawk moving directly away from the balloon in a direction due north. The speed of the hawk relative to you is 2.9 m/s. What are the magnitude and direction of the hawk's velocity relative to the ground? Express the directional angle relative to due east.

2007-02-05 14:03:57 · 2 answers · asked by Anonymous in Physics

2007-02-05 14:03:50 · 7 answers · asked by Nathaniel G 1 in Astronomy & Space

Such as Italy

2007-02-05 14:02:15 · 3 answers · asked by webelieve04 2 in Weather

-2 sqr root (3+x) -4

2007-02-05 14:02:09 · 10 answers · asked by C 1 in Mathematics

Directions (For all problems use the following units: atm, Kelvin, moles and Liters)
What are the units on each of the variables in the ideal gas equation?
PV = nRT
2. If a gas sample has a temperature of 32.5 degrees Celsius, what is the temperature of the gas in Kelvins?
3. What is the volume of 1 mol of an ideal gas at 273 K and 1 atm of pressure?
4. What is the temperaure (in Kelvins) of a sample of an ideal gas if 1.5 moles of the gas occupy a volume of 27 liters at 1.1 atm.
I have some answers but i want to make sure is correct

2007-02-05 14:02:08 · 2 answers · asked by princess 1 in Chemistry

I'm trying to find a list of how blood moves through the heart containing these 12
bicuspid valve
pulmonary semilunar valve
right atrium
left ventricle
aortic semilunar valve
superior vena cava
right ventricle
tricuspid valve
left atrium
pulmonary arteries
pulmonary veins
aorta
and pulmonary trunk


please help if you can... this information is very hard to find

2007-02-05 14:01:35 · 5 answers · asked by Anonymous in Biology

1. the process by which excesss water leaves plant throught the stomates is known as...

a. lovomotion c.hydrolysis
b.photosynthesis d.transpirtation

2.which activity is an example of the life process knows as synthesis?

a.an organic compound is broken down and energy is releasted.

b.Starch is formed by the chemical bonding of glucose molecules.

c.A large molecule is broken down into smaller molecules.

d. Oxygen moves into a cell through the cell membrance.


thanksyou so much

2007-02-05 14:01:24 · 4 answers · asked by Kaleidoscope eyes 4 in Biology

1) Describe the effect on y if you double the value of x in a:
(a) direct square power function
(b) direct fourth power function

-and-

2) Describe the effect on y if you double the value of x in an
(a) inverse - variation power function
(b) inverse - square - variation power function

2007-02-05 14:00:39 · 2 answers · asked by Anonymous in Mathematics

2007-02-05 14:00:13 · 4 answers · asked by Cool_girl 2 in Earth Sciences & Geology

a. On Dec. 21 , what is the noon sun angle for someone at 54 degree N . Lat. ?
B. in what horizon ( part of the sky using compass directions) is the noon sun?

2007-02-05 13:59:40 · 2 answers · asked by bmw z 1 in Earth Sciences & Geology