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Science & Mathematics - 16 September 2007

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a long jumper leaves the ground at an angle of 22 degrees to the horizontal and at a speed of 12.5m/s A) How far does he jump? B) What is the maximum height reached? C) How long is he in the air?


Answers are 11.1m, 1.12m, and 0.955 sec
I have no idea how to get those answers!!! please help

2007-09-16 09:03:05 · 2 answers · asked by J 2 in Mathematics

I have no idea how to do this particular question because the parameters change partway through. Does anyone have any ideas? I'll use U as the partial derivative of U with respect to s.
Let W(s,t) = F(u(s,t),v(s,t) where
u(1,0) = -4
u(1,0) = 7
u(1,0) = -1
v(1,0) = 4
v(1,0) = -5
v(1,0) = -2
F(-4,4) = 6
F(-4,4) = -6

Find W(1,0) and W(1,0)

2007-09-16 09:02:10 · 1 answers · asked by razorj06 2 in Mathematics

2007-09-16 09:01:09 · 1 answers · asked by Anonymous in Chemistry

I can find tons on Pegasus ,but no mention of the telescope or type of telescope that was used to discover /explore it ?

2007-09-16 09:00:59 · 4 answers · asked by Alexander C 1 in Astronomy & Space

If not, can you please explain where I went wrong and what I'm supposed to do?

Here's what I did...

(2x-1)(-x^2+3x-4)

= 2x(-x^2+3x-4) - 1(-x^2+3x-4)2 - 3x + 4
= -2x^3 + 7x^2 - 11x + 4

2007-09-16 08:55:58 · 5 answers · asked by Anonymous in Mathematics

We are making salsa and got to thinking about why tomatoes are fruits. I was told it was because the seeds are on the inside. If this is true then a cucumber, jalapeno and many other vegitables would be fruits too. Huh...?

2007-09-16 08:53:44 · 10 answers · asked by t_stace 1 in Botany

i am so confused

2007-09-16 08:51:05 · 1 answers · asked by xvxnishaxvx 1 in Astronomy & Space

1) The Intersection of two distinct planes is a?
A. Plane, B. Point, C. Line, D.All Of These

I think it would be D, because it contains all 3 terms

2) Points that do not lie in the same plane are?

Wouldn't it be Non-Collinear?

2007-09-16 08:49:31 · 5 answers · asked by Anonymous in Mathematics

Can someone help me please? answer my questions.

2007-09-16 08:46:43 · 7 answers · asked by xvxnishaxvx 1 in Astronomy & Space

I read that as humans evolved they became fatter and the hair started to disappear as we traveled out of Africa- so by that rationale bald people are the zenith of evolution-or is it a load of bollox?

2007-09-16 08:38:00 · 13 answers · asked by Anonymous in Biology

also -1, 1, -1, 1

2007-09-16 08:34:30 · 5 answers · asked by Anonymous in Mathematics

What is true about the direction of the electric field just outside the surface of a conductor?

2007-09-16 08:33:05 · 4 answers · asked by Anonymous in Physics

what is the drug INSUSYM? and what's it used for?

2007-09-16 08:31:46 · 4 answers · asked by Anonymous in Medicine

how does variability within a species affect its survival

2007-09-16 08:26:37 · 2 answers · asked by Anonymous in Astronomy & Space

in your own words define natural selection

2007-09-16 08:24:36 · 6 answers · asked by Anonymous in Astronomy & Space

what is variability

2007-09-16 08:23:41 · 2 answers · asked by Anonymous in Astronomy & Space

C= 24 pi ft.
I know the answers are r= 12 and d= 24
I just don't understand how to set it up to figure this out.

2007-09-16 08:22:21 · 6 answers · asked by Jen 4 in Mathematics

2007-09-16 08:21:38 · 3 answers · asked by Anonymous in Engineering

b=3, c= 7

a=10, b=24
Please help me solve. I'm edger to find out the answer. Please, if possible, show all steps and I'll award you a best answer.

2007-09-16 08:20:56 · 11 answers · asked by Tameeka 1 in Mathematics

i prefer to get also a device with a gps and gyroscope in one device ...does that exist?

2007-09-16 08:20:22 · 1 answers · asked by mostafitoof 1 in Engineering

(e^x+y) dx + (2+x+ye^y) = 0, y(0) = 1

2007-09-16 08:18:07 · 2 answers · asked by Bryan G 2 in Mathematics

http://i18.tinypic.com/5yd2zgl.jpg
This is a v vs. t graph. How do you know what the position vs. time graph will look like?

2007-09-16 08:16:11 · 3 answers · asked by Sweet Victory 2 in Mathematics

How do you determine the amount of entropy in groups of molecules?

2007-09-16 08:15:03 · 1 answers · asked by Anonymous in Biology

classification location and any details

2007-09-16 08:14:05 · 2 answers · asked by Anonymous in Biology

2007-09-16 08:11:51 · 15 answers · asked by *smile* 4 in Zoology

2007-09-16 08:11:35 · 3 answers · asked by Anonymous in Astronomy & Space

the problem says "Which of the following relations is a function?"
a. (3, -3) (4, -3) (2, -3)
b. (1, 7) (8, 4) (-3, -4) (1, 4)
c. (2, 0) (2, 3) (2, 8) (2, -3)
d. (1, -1) (0, 0) (1, 0) (0, -1)



if u can figure out please tell me how you got the answer..... thanks!!

2007-09-16 08:08:21 · 2 answers · asked by Jordan 1 in Mathematics

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