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Science & Mathematics - 16 September 2007

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2007-09-16 06:40:49 · 3 answers · asked by Ellie 1 in Earth Sciences & Geology

how to solve

4.8 y > 10.56

2007-09-16 06:40:16 · 5 answers · asked by cutie2007 2 in Mathematics

2007-09-16 06:38:45 · 8 answers · asked by pHiLlY 1 in Chemistry

A ball is thrown vertically upward (assumed to be the positive direction) with a speed of 20.0 m/s from a height of 4.0 m.
(a) How high does the ball rise from its original position?
m
(b) How long does it take to reach its highest point?
s
(c) How long does the ball take to hit the ground after it reaches its highest point?
s
(d) What is the ball's velocity when it returns to the level from which it started?
m/s
show how you did it thanks

2007-09-16 06:38:45 · 1 answers · asked by Anonymous in Physics

A baseball was clocked at 100.8 mi/h. If a pitch were thrown horizontally with this velocity, how far would the ball fall vertically by the time it reached home plate of 60 ft away?

2007-09-16 06:38:34 · 1 answers · asked by Captain Whiskerboy Litterbox 3 in Physics

A ball thrown vertically upward is caught by the thrower after 9.1 s.
(a) Find the initial velocity of the ball.
m/s (upward)
(b) Find the maximum height it reaches.
m

Can you show me how you get the answer because i dont know how you calculate displacement when a ball is thrown upward.

2007-09-16 06:37:41 · 1 answers · asked by Anonymous in Physics

PLeASe HeLP ANSWeR THeSe CHeM QUeSTIONS??

1.CaO (s) + H2O(l) = Ca2+ (aq) + 2OH –(aq)

(i)If the pH of this solution were tested, state whether it would be below or above pH 7, or equal to pH 7.
(ii)Give a reason for your answer to (i) above.

2. Write a balanced equation to show what happens when solid calcium carbonate is heated.

Thanks Muchly!!!

2007-09-16 06:37:07 · 1 answers · asked by Jessa 2 in Chemistry

2.72 g of MgCl2 is equal to how many moles?

2007-09-16 06:32:35 · 1 answers · asked by bebo m 1 in Chemistry

If you know how an element behaves and what it looks like does that tell you anything about how a compound containing that element looks or behaves?

2007-09-16 06:30:14 · 2 answers · asked by melissa c 2 in Chemistry

Please give me a SOPHISTICATED answer with logical reasoning!! I'm very serious about this question. Thanks!

2007-09-16 06:26:13 · 1 answers · asked by Anonymous in Other - Science

I think it's found in red and brown dyes, but I'm not sure.

Any help is appreciated, thanks!

2007-09-16 06:25:18 · 7 answers · asked by Ally 3 in Chemistry

The result of the blood pressure reading at the doctor's office is very important. The reading is recorded and if it is abnormal, a form of treatment is discussede, based on this one reading yet the way the doctor's assistant take the blood pressure reading if improper could produce an incorrect reading. Some take it with arms down, some with arms extended, and others with the patient standing up. Each produced varying results. Isn't it the correct way to have the arm patient sitting with the arm the same level as the heart?

2007-09-16 06:24:12 · 1 answers · asked by Don S 5 in Medicine

(5 - 3(sqrt(-48)) * (2 - 4(sqrt(-27))

and


(4+i) / (3 + 5i)

2007-09-16 06:23:35 · 3 answers · asked by K Rose 3 in Mathematics

2007-09-16 06:22:34 · 3 answers · asked by Im here 2 in Mathematics

cant shoot them, its £2000 fine per bird

2007-09-16 06:21:39 · 13 answers · asked by judas 2 in Agriculture

I have the answer to a vertex and graph of y = X^2 + 5 (I have the graph completed) but is there a good way to explain this calculation? I cannot get it on paper to look correct.......

2007-09-16 06:20:30 · 2 answers · asked by Cutekow 2 in Mathematics

Find the intersection of the following two lines.
2x + 4y = 11
-5x +3y = 5

2007-09-16 06:18:27 · 3 answers · asked by jewel7962002 1 in Mathematics

I have booked in for a normal colonoscopy next week. According to the paper work given by the doctor, colonoscopy involves the use of x-ray. Is that true?

2007-09-16 06:16:07 · 14 answers · asked by Anonymous in Medicine

Explain how you did it.. Thanks .

2007-09-16 06:15:33 · 10 answers · asked by Anonymous in Mathematics

(x-2)(2x+3)

x2+1/x

(x+1/x)2

2007-09-16 06:15:09 · 5 answers · asked by Megan B 2 in Mathematics

Standard form help please!!

2007-09-16 06:11:34 · 4 answers · asked by x1gemma1x 1 in Mathematics

Input and Output Charts. How do they work?

2007-09-16 06:08:23 · 0 answers · asked by Julie E 1 in Mathematics

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