Science & Mathematics - 11 November 2007

when you are told to discuss,what exactly do they want?

2007-11-11 20:25:42 · 5 answers · asked by eric s 1 in Biology

2007-11-11 20:23:54 · 6 answers · asked by chelly 1 in Mathematics

2007-11-11 20:19:15 · 3 answers · asked by Anonymous in Medicine

I know increase in count means that there is damage. What does a decrease in count imply?

2007-11-11 20:05:50 · 2 answers · asked by Anonymous in Medicine

Does any one think that UFO's are really wandering in our skies? If yes, please reply me with some proof...Thank you.

2007-11-11 19:54:28 · 22 answers · asked by Anonymous in Astronomy & Space

This might sound kinda screwy, but is our inability to see the fourth dimension and beyond merely the result of an insufficently evolved eye? And given time, could our eyes theoretically evolve to the point that we could see other dimensions?

2007-11-11 19:51:08 · 6 answers · asked by Anonymous in Biology

If I understand correctly, at the base of black holes are points of infinite density. The big bang, as I understand it, originated from a point of infinite density.

If I understand these things correctly, is it not theoretically possible that our universe is the result of a black hole? And that other universes, possibly behind our means of observation, are being created as a result of the black holes which we know to exist?

My apologies to the astrophysicists to whom this question may seem elementary (or elementarily flawed)!

Any insight would be GREATLY appreciated!

2007-11-11 19:47:00 · 8 answers · asked by Anonymous in Astronomy & Space

2007-11-11 19:44:27 · 2 answers · asked by MANDY 1 in Mathematics

I can't solve some word problems.

Find four consecutive integers such that the sum of the two greatest subtracter from twice the sum of the two least is 15.

and

The atomic numbers of radium, thorium, and uranium are consecutive even integer in increasing order. If three times the atomic number of radium is 82 more than the sum of the atomic numbers of thorium and uranium, what are the atomic numbers of these three elements?

Please help.

2007-11-11 19:38:27 · 2 answers · asked by Anonymous in Mathematics

A total of 764 tickets were sold for the school play. There were 64 more student tickets sold than adult tickets. How many adult tickets were sold?

2007-11-11 19:30:25 · 5 answers · asked by Ballin! 1 in Mathematics

2007-11-11 19:25:38 · 20 answers · asked by Kuhan 1 in Astronomy & Space

2007-11-11 19:21:35 · 20 answers · asked by ROD 1 in Astronomy & Space

2007-11-11 19:10:38 · 2 answers · asked by Anonymous in Mathematics

Which one of the following is a positive ion?
(a)Beryllium
(b)Boron
(c)Carbon
(d)Nitrogen
(e)Neon

2007-11-11 19:08:56 · 3 answers · asked by jess_me 2 in Chemistry

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Algebra%20II/411q/Picture2.png
6. Name a column matrix.
7. Name a row matrix.
8. What are the dimensions of Matrix S? Make sure you give them in the correct order.
9. What element is in Matrix M, row 3, column 2?
10. a.) If you multiply Matrix S by Matrix T (S times T), what are the dimensions of the new matrix?

b.) If you multiply Matrix T by Matrix S (T times S), what are the dimensions of the new matrix?

c.) Is the answer matrix to part b different than the one in part a? Why?

2007-11-11 18:59:34 · 4 answers · asked by Anonymous in Mathematics

What happens?

2007-11-11 18:57:39 · 13 answers · asked by Alejandro 1 in Astronomy & Space

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Algebra%20II/411q/Picture1.png
1. -4Q
2. L - 3P
3. RS
4. N - M
5. N + T

2007-11-11 18:55:07 · 2 answers · asked by Anonymous in Mathematics

how does air friction change the motion of a ball or the velocity of a ball coming down a ramp which is attached to a counter top? please kindly be as detailed as possible when explaining this.

Thank you, any help will be greatly appreciated.

2007-11-11 18:48:40 · 3 answers · asked by jumba 1 in Physics

It's been over 30 years.

2007-11-11 18:46:47 · 31 answers · asked by bogmonster 3 in Astronomy & Space

A woman is 1.8 m tall and has a mass of 60 kg. She moves past an observer with the direction of the motion parallel to her height. The observer measures her relativistic momentum to have a magnitude of 2.0 1010 kg·m/s. What does the observer measure for her height? Help please??

2007-11-11 18:34:18 · 4 answers · asked by darkangel_0219 1 in Physics

2007-11-11 18:34:11 · 10 answers · asked by callsriganesh 3 in Zoology

Is there anything which will travel faster than light, I know some say human thoughts, but anything else ?

2007-11-11 18:22:54 · 10 answers · asked by Sr K 2 in Physics

almost incrementally documented, is a series of world wide deluges that have kicked ancient civilizations into the depths of the oceans. Harbinger's Glaciation states are directly linked to Electro-magnetic activity, but is it extra-terrestrial?

2007-11-11 18:18:07 · 1 answers · asked by luomoprincipale 2 in Earth Sciences & Geology

1. How can I relate any of the three Newton's law to pressure, friction, fluid, air resistance or the freely falling object. (Give me an example of any of them)

2. What is the formula for each law? (I heard something like a=F/M)

PLEASE HELP !!! I REALLY NEED TO KnOW THIS !!!!

Thanks !!!

2007-11-11 18:17:42 · 2 answers · asked by Summer W 1 in Physics

Please help me!!!!

2007-11-11 18:10:03 · 2 answers · asked by Anonymous in Chemistry

Show that
(1/2(a+(a^2+b^2)^-2))^-2+i(1/2(-a+(a^2+b^2)^-2))^-2
squares to a+ib.

2007-11-11 18:06:52 · 1 answers · asked by Anonymous in Mathematics

Consider a function f which satisfies the following properties:
(i) f(x+y)= f(x)f(y)
(ii) f(0)≠0
(iii) f(0)=1

1. Use the definition of the derivative to show that f'(x)=f(x) for all real numbers x.

2. Let g be another function that satisfies properties (i)-(iii) and let k(x)=f(x)/g(x). Show that k is defined for all x and find k'(x). Use this to discover the relationship between f and g.

3. Can you think of a function which satisfies (i)-(iii). Can there be more than one such function?

Please help! I don't understand how to approach this problem at all!

2007-11-11 17:57:57 · 2 answers · asked by Jess 2 in Mathematics

We often find a trail of some when we look up in the sky. But this only happen to some. Is there a scientific reason? I am sure this does not happen to all the planes that are flying high.

2007-11-11 17:48:15 · 5 answers · asked by Francis A 1 in Astronomy & Space

Can anyone answer this and PLEASE tell me how they got their answer.

Which of the following expressions represents the product of 3 less that twice x and 2 more than the quantity of 3 times x?

A. -6x squared + 25x +6
B. 6x squared + 5x + 6
C. 6x squared + 5x + 6
D. 6x squared - 5x - 6
E. 6x squared - 13x - 6

2007-11-11 17:48:03 · 6 answers · asked by Anonymous in Mathematics

Dogs are always peeing and craping in my yard... Would it be mean if I biuld a devise called a dog pee post? The devise would consist of a metal conductor sticking up from the ground with a large car battery or several car batterys hooked together to a voltage amplifier (200,000 volts)....when a dog tries to take a piss on it it will get a non life threatining 200,00 volt jolt.....mabe i could set up a sprinkler system that would pop up and spray the dog with water when activated by the pee post...the wet dog would make a better conducter for electricity than a dry dog....this would be a non life threatining devise...it would just remind to dog not to pee there anymor.......

2007-11-11 17:46:46 · 6 answers · asked by space chimp 3 in Engineering