Science & Mathematics - 28 September 2007

ESP.

I was reading this book and I ca't figure out if I believe that ESP is real or not. So if you have anything to tell be if it's real or not tell me.

2007-09-28 06:17:12 · 18 answers · asked by chrisafirgirl 2 in Paranormal Phenomena

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Help with physics projectile question?

A cannonball is fired from a cliff 140 m high downward at an angle of 27 degrees with respect to the horizontal. If the cannon's muzzle velocity is 34 m/s, what is the cannon ball's speed when it hits the ground?

I am not sure how to do this problem...I would appreciate any help on how to do it or example problems. (my book dosn't have any it just tells you the theory...)

2007-09-28 06:14:03 · 2 answers · asked by Anonymous in Physics

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Hey i heard that mars would apper as a moon in the sky on Aug 27 2007?

it didn't apper was it a rumour?

2007-09-28 06:10:29 · 12 answers · asked by HAH 1 in Astronomy & Space

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A 0.073 kg arrow is fired horizontally.?

The bowstring exerts an average force of 80 N on the arrow over a distance of 0.75 m. With what speed does the arrow leave the bow?

2007-09-28 06:09:48 · 2 answers · asked by Anonymous in Physics

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Why is it that an air bubble in a closed container will not continue to move forward when it's brought to halt

2007-09-28 06:08:15 · 3 answers · asked by Anonymous in Physics

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Atom problem !?

An subatomic parts of an atom are
1.electrons
2.protons
3. nuetrons

is there any other particles present in an atom ,if so what?

2007-09-28 06:07:58 · 1 answers · asked by HAH 1 in Chemistry

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Math Word Problems?

1. Ten points are placed around a circle. A line segment is drawn between each pair of points. How many line segments are drawn?

2. A palidromic number is a whole number that remains unchanged when its digits are written in reverse order. Find a palidromic number that has four digits and is the fourth power of a natural number.

2007-09-28 06:04:22 · 2 answers · asked by S M 1 in Mathematics

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What was the weather like in MI on Septemer 11, 2001?

I am doing an essay and forgot what the weather was like that day..does anyone remember?

2007-09-28 06:02:53 · 5 answers · asked by Jacob's Mommy (Plus One) 6 in Weather

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Can a software Requirements Specification be drafted in 24 hours?

A question for software engineers. Can you draft an SRS for an existing commercial product within 24 hours? That is, can one be created that would withstand scrutiny against ISO 13485?

Serious answers only please.

2007-09-28 05:58:20 · 3 answers · asked by Flying_Bears_are_Cool 1 in Engineering

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When was the last time there was a full or new moon on the spring equinox?

2007-09-28 05:57:20 · 3 answers · asked by Ken B 2 in Astronomy & Space

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Can somebody please explain this?

Can somebody please explain to me, why r.m.s voltage and not the average voltage is equivalent to d.c. Can you try and explain it physically, without resorting to P=IV, I know this side of it. I just can't seem to shake the picture in my head of a line denoting the average value as being the equivalent line of a d.c voltage. Why does it need that little bit extra to be equivalent? I hope this is clear.

2007-09-28 05:53:50 · 5 answers · asked by eazylee369 4 in Physics

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how do you complete the square of x^2-2x and y^2-2y?

is it even possible?

2007-09-28 05:51:57 · 3 answers · asked by m-o-o-n 3 in Mathematics

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If you thought our universe was a hologram how would you prove it?

Physicist David Bohm former protege of Albert Einstein started the idea of a holographic universe since then many scientists and critics are becoming supporters but how do you go about proving that everything we assume is real is just a holographic enfoldment from within? Michael Talbot wrote a very detailed book about this called the holographic universe

2007-09-28 05:51:34 · 8 answers · asked by the11diamondsguy 1 in Physics

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Can you explain why is a person's hemoglobin, hematocrit and Complete Red Blood count is very low...?

...when suffering from Cervical Cancer?

Please explain thoroughly thanks very much!!!!

2007-09-28 05:50:50 · 5 answers · asked by Samlovesjesea 1 in Medicine

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Please help with Algebra II Word Problem?

A Boy is two-thirds as old as his sister, and two years ago he was five-eighths as old as she was then. Find the their present ages.

I keep ending up with 21s=48

what am i doing wrong?

2007-09-28 05:49:11 · 6 answers · asked by JordanH 2 in Mathematics

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How long should gas tungston arc welding leads be?

2007-09-28 05:40:40 · 4 answers · asked by Anonymous in Engineering

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what is the reason for the high life span of tortoise (more than 100 years)?

is it because of the external shell aloneeee? Now there may be some other reason. i mean scientific!

2007-09-28 05:38:40 · 8 answers · asked by john 1 in Zoology