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Science & Mathematics - 14 November 2007

[Selected]: All categories Science & Mathematics

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5x^5+10^2+2x

2007-11-14 12:13:35 · 1 answers · asked by Anonymous in Mathematics

2007-11-14 12:13:34 · 4 answers · asked by xxsoccerchickxx_84 1 in Chemistry

What kind of material is best for builiding a house in a hot climate? (Material with high specific heat capacity or low specific heat capacity)

2007-11-14 12:12:31 · 7 answers · asked by movieloverme 1 in Other - Science

A speed boat capable of 30km/h is to cross a river to a point directly opposite its starting point. The river flows at 4km/h. At what angle to the bank must the boat be steered? How long will it take if the river is 150m wide?

2007-11-14 12:11:52 · 2 answers · asked by firemama 1 in Physics

One tied to a tree and the other to a horse. No problem. Compare the tension he experiences in two other situations (horse and horse, and two horses and the tree).

2007-11-14 12:11:31 · 2 answers · asked by camila_faria33 1 in Physics

2007-11-14 12:10:50 · 5 answers · asked by southern girl 1 in Mathematics

the answer of the perimeter of the triangle (3x+1) + (x+2) + (2x+3) is 5x +6+x then how we will find the perimeter if x=2cm

2007-11-14 12:08:52 · 5 answers · asked by Anonymous in Mathematics

2007-11-14 12:07:11 · 2 answers · asked by ynkilc 1 in Physics

Okay I need help with this problem:

1. You carry two heavy suitcases up a flight of stairs. Will you do more work on the bags if you carry them up one at a time? Explain why or why not.

If you're wondering. We're currently working on the unit of "Work, Power, and Machines"

2007-11-14 12:07:10 · 2 answers · asked by Anonymous in Physics

2007-11-14 12:06:12 · 5 answers · asked by samuel b 1 in Engineering

A. 625 N
B. 703 N
C.15,625 N
D. 20,250 N

2007-11-14 12:05:48 · 1 answers · asked by Bobbi K 1 in Mathematics

Assume that all chickens have 3593 feathers. If it takes you 6.9 seconds to pluck 34.6 feathers, how many hours would it take you to defeather 1542 chickens?

2007-11-14 12:03:46 · 8 answers · asked by roxanne n 1 in Mathematics

1. Can the kinetic energy of an object be negative?


2. In a collision between two cars, one car left skid marks twice the length of those left by the other car. A bystander who viewed the collision claims that the cars applied their brakes at the same time. What conclusions can you draw?


3. Two identical objects move with speeds of 5 m/s and 20m/s, what is the ratio of their kinetic energies?

2007-11-14 12:03:10 · 5 answers · asked by johnnyboy 2 in Physics

Ok, this is kinda confusing so if you have a question i will try to explain more. ( I dont know the answer)

At the first energy level there is -1312 Kj/mole,
2 energy level is -328 kj/mole
3rd is -145.8
4th is -82
5th is -52.5
6th is -36.4
7th is -26.8
8th is -20.5

(They are all negative numbers)

Now we are supposed to take these numbers and find the pattern. They have to do with the energy at each level. This is for my chemistry extra credit, so we are suppose to get help.

If you have any ideas or know the answer let me know.

Thanks

2007-11-14 12:02:14 · 2 answers · asked by Anonymous in Chemistry

Disease ecology: what does it entail?

2007-11-14 12:01:56 · 2 answers · asked by Jess 2 in Biology

Given: Triangle ANM congruent to Triangle ANI
Line DI is congruent to Line OM
Line ND is congruent to Line NO

Prove: Triangle DIN is congruent to Triangle OMN

heres a picture
http://i50.photobucket.com/albums/f332/kidsnextdoorone/lastscan2.jpg

2007-11-14 12:01:44 · 4 answers · asked by Jake 2 in Mathematics

what happens to you in levels of carbon dioxide of 15 ppm being in a space shuttle? thanx 4 answering if you do!!!!! <>> lol :]

2007-11-14 12:01:23 · 2 answers · asked by Anonymous in Astronomy & Space

0

Does anyone either know all the graphing equations to the alphabet, or have a link to a site w/ all the equations on it. If so, please tell me...

2007-11-14 12:01:05 · 1 answers · asked by Mykki 2 in Mathematics

I'm a nursing student and i'm stuck on this question we were assigned.

The patient is recieving Heparin drip@100 units/hr IV. The PTT is 80 seconds( normal 22-32) and INR is 0.5. the physcian orders Coumadin 10mg. Should you give this order without questioning the drug or the dose?

2007-11-14 12:00:48 · 4 answers · asked by Ashley v 1 in Medicine

2007-11-14 12:00:20 · 2 answers · asked by R. Ron 1 in Astronomy & Space

what is the moon theory?

2007-11-14 12:00:18 · 3 answers · asked by i have questions 2 in Astronomy & Space

A man drops a rock off a cliff 4.3 sec. later it hits the ground how far did it fall in meters the formula is Distance =1/2 x (acceleration) x ( time)2

2007-11-14 12:00:11 · 1 answers · asked by awesome 2 in Physics

11.03 meters per second to miles per hour. can you show me the work please?

2007-11-14 11:59:34 · 1 answers · asked by Anonymous in Physics

Three 7.31 kg masses are at the corners of an equilateral triangle and located in space far from any other masses. If the sides of the triangle are 1.20 m long, calculate the magnitude of the net force exerted on each of the three masses.

2007-11-14 11:59:13 · 1 answers · asked by Anonymous in Physics

Translate into mathematical expressions and Find the number.
Enter numeric answers. Use x as variable.
Five less than a number is seventeen
x-5 =17
x=17+5
x= 22 numeric answer

The total of twice a number and six is fourteen
2x + 6=14
2x + 6 - 6 = 14 - 6
2x / 2 = 8 / 2
x = 4 numeric answer

Twice the total of a number and three is fifteen
2(x + 3) =15
2x + 6 = 15
2x + 6 - 6 = 15 - 6
2x + 0 = 9
2x / 2 = 9 / 2
x = 4.5 numeric answer

Three more than three times a number is seven
3+3x = 7
3 - 3 + 3x = 7 - 3
0 + 3x = 4
3x / 3 = 4 / 3
x = 1 1/3 or 1.33

The product of five less than a number and two is six
(x - 5) 2 = 6
2x - 2 X 5 = 6
2x - 10 = 6
2x - 10 + 10 = 6 + 10
2x = 16
2x / 2 = 16 / 2
x = 8 numeric answer
Are these numeric answers correct ?

2007-11-14 11:58:38 · 5 answers · asked by Anonymous in Mathematics

45/1-5e^5x=67

2007-11-14 11:57:24 · 1 answers · asked by lauren m 1 in Mathematics

The numbers, 999, 777, and 111 contain a total of nine digits. Cross out one or more of the digits and the sum of the numbers left need to equal eighteen. How would he answer to this puzzle change if directions change to: Cross out one or more of the digits and the sum of the digits left need to equal eighteen. (try to show work) THANK YOU!

2007-11-14 11:57:02 · 2 answers · asked by Anonymous in Mathematics

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