Science & Mathematics - 17 July 2006

2006-07-17 06:00:47 · 5 answers · asked by candyisland2002 2 in Physics

The total energy stored in a radio lobe is about 10^53 J. How many solar masses would have to be converted to energy to produce this energy? Hints: Use E= mc^2. One solar mass equals 2 x 10^30 kg.
I do not even know where to begin. For some reason, I just don't get these kinds of problems. If anyone knows the answer or can suggest how to go about answering it, I would greatly appreciate it.

2006-07-17 05:58:38 · 3 answers · asked by Anonymous in Astronomy & Space

Need some people strong in biology/evolution!

Here are the choices: I've looked up this question for hours online and have read my books. Really interested to know. Need to know for my assignment.

a. Species from different populations do not interbreed.
b. All methods of evolution require chromosomes from more than one organism
c. Offspring of organisms within two populations provide sufficient genetic material to permit evolution of the species to occur.
d. Mutations can only occur across multiple population members.
e. Multiple diploid gamates are required to provide a foundation for the change.

Thanks for everyone's help!!!!

2006-07-17 05:58:20 · 5 answers · asked by thunderbomb90 3 in Biology

2006-07-17 05:58:03 · 2 answers · asked by chamithrosa 1 in Chemistry

2006-07-17 05:56:33 · 7 answers · asked by mt_pcd 1 in Chemistry

2006-07-17 05:55:23 · 10 answers · asked by cityturtleblue 2 in Mathematics

A. 3x + 4y - 36 = 0
B. 4x + 3y = 35
C. 3x - 4y + 30 = 0
D. 4x - 3y - 23 = 0
E. 3x + 4y + 14 = 0
F. 4x + 3y + 15 = 0
G. 3x - 4y - 20 = 0
H. 4x - 3y + 27 = 0
I. none of these

2006-07-17 05:54:52 · 5 answers · asked by Olivia 4 in Mathematics

2006-07-17 05:53:17 · 36 answers · asked by Gigglebox 1 in Geography

2006-07-17 05:53:07 · 4 answers · asked by Bill 3 in Biology

Or would their 'intelligence' always be the key factor for their dominance on earth?

2006-07-17 05:52:36 · 14 answers · asked by Source 4 in Other - Science

Does anyone know what is the most common month to be born in world wide? My friend says April as humans a still predisposed to try and have children in the spring months in order to ensure a better chance of survival (or pressumably October/November in the southern hemisphere).

2006-07-17 05:50:21 · 14 answers · asked by John D 3 in Biology

annually

2006-07-17 05:48:20 · 2 answers · asked by mer 1 in Chemistry

Im looking for the most dangerous animal to man. I know what the answer is according to the number of fatalities they cause annually. If you know what it is, and can give me a brief explanation, I will award 10 points for the best answer. Im not looking for internet answers, and will not award any points for those.
Good Luck!

2006-07-17 05:47:47 · 33 answers · asked by Anonymous in Zoology

2006-07-17 05:43:27 · 20 answers · asked by Anonymous in Other - Science

2006-07-17 05:41:08 · 8 answers · asked by cityturtleblue 2 in Mathematics

i mean, if i bet red then black then red then black then red...and so on, switching colours every time, what are the chances that i will lose all eight in a row. i know it is very complecated, but there are some very smart people on this site!!

PS: lets say on a europian table!

2006-07-17 05:40:26 · 12 answers · asked by julian r 2 in Mathematics

chew on that one..l.o.l.

2006-07-17 05:40:09 · 8 answers · asked by herman 2 in Other - Science

It got to minus 42 here.

2006-07-17 05:38:12 · 12 answers · asked by Crooks Gap 5 in Weather

2006-07-17 05:37:45 · 14 answers · asked by shiranddave 2 in Astronomy & Space

(www.softsupplier.com)

2006-07-17 05:37:03 · 5 answers · asked by brlmnd 1 in Physics

He has alzheimers and he'll never miss the money. I had the best Forth of July ever!!

2006-07-17 05:36:24 · 16 answers · asked by Anonymous in Chemistry

2006-07-17 05:34:13 · 20 answers · asked by Crooks Gap 5 in Geography

How can the space buggy drive (remain flat on the moon surface) if there is no gravity? What prevents it from just floating away? How can a person walk on the moon and not just float away?

Thanks!! :)

2006-07-17 05:33:47 · 17 answers · asked by Anonymous in Astronomy & Space

I know the answer; just need to see how they got it.

2006-07-17 05:29:04 · 1 answers · asked by buttercup1137 2 in Mathematics

2006-07-17 05:27:21 · 26 answers · asked by camellover08 1 in Biology

2006-07-17 05:25:46 · 16 answers · asked by Anonymous in Other - Science

Here is the deal. We got the first child this Cord (embellical cord) Blood Registry kit. Basically, it freezes the childs embelical cord blood with the stem cells...incase she would need some organ later in life she could have these stem cells formed into whatever.

So...my wife wants this for the second child as well...They told her it is DNA related and that needs to match...however, a sibling could also use the others stem cells with a less successful rate. I just can't buy that info...it just sounds to me like they're trying to sell us some more stem cells...

Here is my question (s): Aren't stem cells interchangeble...regaurless of who they came from? Does the DNA really affect the success rate of stem cells?

My theroy behind these observations are simple. The debate to stem cell research was spond from scientist wanting to farm embreos...so that tells me that DNA has little or nothing to do with stem cell success...RIGHT?

2006-07-17 05:25:04 · 3 answers · asked by DAVER 4 in Other - Science

2006-07-17 05:24:12 · 16 answers · asked by Manya 1 in Geography

Given this information, complete the following sentence with one of the choices listed below.

The object will hit the ground when t = ______ seconds

A. 0.9
B. 1.8
C. 2.6
D. 3.2
E. none of these

2006-07-17 05:21:53 · 8 answers · asked by Olivia 4 in Mathematics

when examination held

2006-07-17 05:15:01 · 2 answers · asked by pallab_das36 1 in Physics