Science & Mathematics - 23 July 2007

I am in a state of dilemma.Can you avoid my confusion?

2007-07-23 03:13:14 · 8 answers · asked by irfan b 1 in Astronomy & Space

2007-07-23 03:11:41 · 12 answers · asked by Anonymous in Physics

can ayone give me an answer for this?? me and my friends have been arguing about this topic .. i've to do presentation for tis..

why will fish becomie unstable? is it because of the water resistance ?

2007-07-23 03:08:37 · 3 answers · asked by Anonymous in Biology

2007-07-23 03:05:13 · 9 answers · asked by kmof6322 1 in Physics

Explain, using Huygen’s principle, how refraction occurs due to a change of wave speed as the wave moves from one medium to another.

2007-07-23 03:04:44 · 3 answers · asked by acu04385 2 in Physics

Theoretically if you could travel faster than light and looked back, time would be going backwards, but what would you see if you looked forward ?

2007-07-23 03:01:57 · 20 answers · asked by ronaldmallier 1 in Astronomy & Space

The resistances of the primary and secondary coils of a transformer are 45 and 13 , respectively. Both coils are made from lengths of the same copper wire. The circular turns of each coil have the same diameter. Find the turns ratio Ns/Np.

2007-07-23 03:01:07 · 2 answers · asked by cwhughes13 2 in Physics

2007-07-23 03:01:02 · 12 answers · asked by TH3 G@t3 0f W00d ....... 1 in Earth Sciences & Geology

It is a slice of cake shape. 850cm around th edge, 400 down one side and 470 down the other. It is only a rough idea not down the the exact as it is a strange shape

2007-07-23 02:59:00 · 4 answers · asked by Foxy Chick 3 in Mathematics

Astronauts who spend 3 months in the ISS will be subjected to how many times the maximum recommended dosage for one year?
a) 2
b) 3
c) 5
d) 8

2007-07-23 02:57:02 · 6 answers · asked by Anonymous in Astronomy & Space

expected by interrogative questions upon life. Thank You.

2007-07-23 02:41:19 · 6 answers · asked by Anonymous in Chemistry

I ask this on the assumption that no other factor becomes involved that could change rotation speed.And because I am too lazy to do the sums myself and to give 10 points to some poor soul who lusts after them.

2007-07-23 02:29:19 · 17 answers · asked by Anonymous in Earth Sciences & Geology

please give me the details, Id love to hear about it.

2007-07-23 02:27:41 · 9 answers · asked by triple sec 2 in Astronomy & Space

I would really like to go. Also can you give me some insight on the airfare?

2007-07-23 02:26:19 · 7 answers · asked by triple sec 2 in Astronomy & Space

give an example showing when instantaneous and average velocity are the same and example showing when they are different? tnx

2007-07-23 02:17:51 · 2 answers · asked by genesis 1 in Mathematics

2007-07-23 02:14:34 · 5 answers · asked by Anonymous in Astronomy & Space

As long as we have had access to space. we have realeased tons of unusable "space trash" in to the space above earth. What eventauly happens to it. Does it reenter the earth's atmostsphere and burn up or will it continue to encompus earth in its own orbit forever. Have we become so accustomed to pollution our planet that we are moving to a higher level.....meaning space above the earth. Trash is trash no matter how you look at it. Is space to become the earths next and newest "dumping ground" garbage dump?We are so bent on recycling and cleaning up the surface of waste, but what about the space that this "junk" is in orbit of our planet? I love to look beyound our confindment or this planet. I know in my lifetime I will never acheive that, but what about generations to come that find away to break the confinds of earth and travel past our wildest dreams. Are they to come home and find a "garbage dump" sorrounding a place they call home? We have polluted enough of the earth, now space?

2007-07-23 02:14:32 · 7 answers · asked by Kimmi d. 1 in Astronomy & Space

explain the relationship between the horizontal velocity and the vertical velocity of a projectile fired into the air from a location on Earth's surface.?

a jogger runs one lap around a circular track that has a radius of 100 meters in 2.20 minutes. what will be her average velocity at the instant she recrosses the start-finish line?

2007-07-23 02:10:54 · 3 answers · asked by genesis 1 in Mathematics

By ghosts that make spooky noises and move things around

2007-07-23 02:07:21 · 20 answers · asked by ARSENAL FC 4 LIFE!! 3 in Paranormal Phenomena

2007-07-23 02:02:35 · 2 answers · asked by mj 2 in Astronomy & Space

does fancying someone, signify a good genetic match for you?

2007-07-23 01:58:03 · 2 answers · asked by Anonymous in Biology

In a image compression and decompression function, I'm suppose to include the fucntion to calculate the SNR of the reconstructed image.

What command should I use to calculate the image SNR?

thanks alot

2007-07-23 01:56:46 · 1 answers · asked by Hornet One 7 in Engineering

My boyfriend is driving me crazy. He says the US never made it the moon. That it was all a hoax. I just wondered how many others believe this way.

2007-07-23 01:55:36 · 15 answers · asked by bookfreak2day 6 in Astronomy & Space

With the exception of a select few output values, like a division by zero or some other undefined value, do all functions have a value?

Ignore for a second the Cartesian graph... ignore the fact that most definitions of a function require you the ability to plot a value for a given x...

What Im asking is, even if the solution isnt REAL and cant be plotted... does it exist, even if as a complex number?

for example...
Does arcsin (2) exist as a complex number? What value of theta will sin θ yield 2

Do functions exist that dont have -any- value output for a given input, even if only in theory?

2007-07-23 01:55:29 · 3 answers · asked by Anonymous in Mathematics

30 of them? need to kno asap!

2007-07-23 01:51:43 · 9 answers · asked by Anonymous in Medicine

A 200-g block is pressed against a spring of force constant 1.40 kN/m until the
block compresses the spring 10.0 cm. The spring rests at the bottom of a ramp inclined at
60.0° to the horizontal. Using energy considerations, determine how far up the incline the
block moves before it stops (a) if there is no friction between the block and the ramp and
(b) if the coefficient of kinetic friction is 0.400.

2007-07-23 01:49:06 · 2 answers · asked by radwan M 1 in Physics

I see the need for lift off, but in space would there be a need?

2007-07-23 01:49:05 · 21 answers · asked by Chase M 1 in Astronomy & Space

2007-07-23 01:49:05 · 2 answers · asked by Justin C 1 in Zoology

It is said that this results from baroreceptor-mediated sympathetic activation causing heart rate to increase, but what does taking a deep breath have to do with blood pressure? Why is this increase in heart rate NOT due to chemoreceptors stimulated but BARORECEPTOR?

2007-07-23 01:43:40 · 2 answers · asked by freezerfairy 1 in Medicine

2007-07-23 01:41:12 · 18 answers · asked by TH3 G@t3 0f W00d ....... 1 in Astronomy & Space