Science & Mathematics - 6 October 2007

2007-10-06 17:34:43 · 9 answers · asked by Anonymous in Geography

A skydiver without a parachute jumps out of a plane 4000 ft. above the ground and quickly reaches a terminal velocity of 250 ft./sec.The skydiver's pet falcon flies back and forth between the skydiver and the ground at 500 ft/sec.How far has the falcon flown when the skydiver reaches Earth?

2007-10-06 17:28:01 · 4 answers · asked by Livelife 1 in Physics

2007-10-06 17:17:18 · 3 answers · asked by Gelli Anne B 1 in Medicine

(1,0,-1), (1,2,2)

2007-10-06 17:10:37 · 1 answers · asked by carlosboozer 2 in Mathematics

2007-10-06 17:10:37 · 1 answers · asked by Holly I 1 in Medicine

2007-10-06 17:09:01 · 13 answers · asked by Somewhere in Time 3 in Chemistry

Assuming the height from the bottom to the water fountain spout(the point that actually releases water) was "H", distance the water travels horizontally is "F", highest point the water reaches is "P", and time it takes from the spout to the bottom of the pan is "T".

I know that I have to use these equations and use either Sin, Cos, or Tan to find the apex.
V=d/t
A=deltaV/T
v=initialV +at
v^2=initialv^2 + 2ad
d=initald +initalv(t) + 1/2 at^2

Some steps on how I would go on solving the problem would be helpful.
Thanks in advance!

2007-10-06 16:58:15 · 4 answers · asked by Jessica 5 in Physics

like during snow storms and stuff

2007-10-06 16:53:57 · 8 answers · asked by Anonymous in Weather

2007-10-06 16:37:11 · 4 answers · asked by Anonymous in Mathematics

Which one seems to be going in the right direction, or who do you prefer to watch? Or, is there someone out there I haven't heard of yet?

2007-10-06 16:34:17 · 14 answers · asked by beckymarie2 3 in Paranormal Phenomena

What are vacuum tubes?
How do they function?

Can sbdy explain the "vacuum" part of it?

Basic and intuitive way to understand..?

2007-10-06 16:29:04 · 8 answers · asked by learner 1 in Physics

2007-10-06 16:27:08 · 1 answers · asked by andigbf 1 in Chemistry

I can't seem to understand it. For example V2O5 + HCl ---> VOCl3 + H2O
....what the hell is that suppose to mean, I don't get how I can solve it.
I'd be really if someone would kindly explain it to me and provide examples.
thanks

2007-10-06 16:26:21 · 4 answers · asked by Memories of Another World. 6 in Engineering

Pure acid is to be added to a 10% acid solution to obtain 81L of a 20% acid solution
What amount of each should be used?

? L of pure acid solution and ?L of 10% acid solution
Please show me the equation you used.

2007-10-06 16:23:45 · 7 answers · asked by Wonderer 1 in Mathematics

What are semiconductors basically?
Difference btw semiconductors and conductors?
Diff btw semiconductors and insulators?

In what sense, are they called "semi"-conductors?

I want to intuitively understand semiconductors..

Thanks

2007-10-06 16:21:18 · 6 answers · asked by learner 1 in Engineering

I just read somewhere, said oral drug administration should be avoided if patient has bowel inflamation. Could someone help me, I really don't know why?

2007-10-06 16:15:37 · 2 answers · asked by Sword 1 in Medicine

(Xsquared +1) squared, ok i got to Xsquared +1 when i solve this what should i get :S

2007-10-06 16:15:01 · 4 answers · asked by Anonymous in Mathematics

What is the average force exerted by a shot-putter on a 7.0-kg shot if the shot is moved through a distance of 2.8 m and is released with a speed of 13 m/s ?

Please explain

2007-10-06 16:13:34 · 3 answers · asked by Anonymous in Physics

2007-10-06 16:12:53 · 12 answers · asked by Anonymous in Biology

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2007-10-06 16:10:10 · 2 answers · asked by Anonymous in Medicine

Is it due a to an increase in percentage of chlorine?
Please explain your answer.
Thank You!

2007-10-06 16:07:31 · 1 answers · asked by Anonymous in Chemistry

2007-10-06 16:06:54 · 12 answers · asked by beckymarie2 3 in Paranormal Phenomena

I know you have to do it two times but I can't get the right answer. for the first part i let u = ln t dt and dv = t^1/2 and the second Iet u = 1/t and dv = t ^(3/2). Please show step by step

2007-10-06 16:04:19 · 4 answers · asked by houstonman20042002 1 in Mathematics

Key:
~ not
^ and
v or
How do you prove this to be true? I keep getting p v q

2007-10-06 16:03:39 · 6 answers · asked by sleepy 6 in Mathematics

I have no idea how to solve this problem. I will be honest, yes, this is homework. Any help anyone can give is appreciated!

2007-10-06 16:02:57 · 1 answers · asked by allienoble20 1 in Chemistry

Solve for x.
X to the power of (X to the power of 3) = 3

I know the answer is cubed root of 3, I need to know HOW you did it. You use logarithms, right? And then what? I'm so close.

2007-10-06 16:02:48 · 4 answers · asked by dazed and confused 1 in Mathematics

if it helps at all..its mass is 300 grams.

2007-10-06 16:02:35 · 18 answers · asked by Anonymous in Mathematics

2007-10-06 16:01:08 · 3 answers · asked by Em A 1 in Chemistry

2007-10-06 15:58:42 · 12 answers · asked by Anonymous in Astronomy & Space

Find the measures of the three angles of a triangle if the sum of the measure of the first angle and twice the measure of the second angle 15 degrees more than the measure of the third angle.

Show the steps so I can follow what you did, thanks.

2007-10-06 15:57:32 · 1 answers · asked by Ryoma Echizen 3 in Mathematics