Science & Mathematics - 20 January 2007

suppose superman is flying at the speed of light having a mirror in his hands.Will he be able to see his image on the mirror?

2007-01-20 00:27:40 · 18 answers · asked by rajesh bhowmick 2 in Physics

In Physics, at least at high school level, we have a reference table with all the basic equations on it however in some problems, you need to derive from the basic formulas to get an answer. Those are the questions I usually have trouble with.


Can anyone explain to me in steps the types of derivatives, how tos, examples and etc. on basic derivation.

2007-01-20 00:22:47 · 5 answers · asked by Kala J 3 in Physics

2007-01-20 00:22:03 · 7 answers · asked by dennyinparis 1 in Astronomy & Space

when the material withstands the highrst load,how does it breaks at the lower load?Pl note that the breakage is irrespective of the area of the speciman.

2007-01-20 00:21:07 · 2 answers · asked by shree30 1 in Engineering

1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 Can you tell me how many integers are here!!!!

2007-01-20 00:19:31 · 1 answers · asked by Mr Myth 3 in Mathematics

2007-01-20 00:19:24 · 15 answers · asked by Anonymous in Biology

2007-01-20 00:15:37 · 4 answers · asked by curlash 1 in Chemistry

I need to do my Young Scientist Card de.By the way,thanks for answering.I will vote for the best of the best.

2007-01-20 00:14:40 · 2 answers · asked by xxwenjiaxinxx 1 in Astronomy & Space

I know an equable shape is the area and perimeter are the same, ie a square 4x4, A=16 and P=16. I need some triangle and circles that are equable, but am having great difficulty in working these out, can anyone help me.

2007-01-20 00:07:39 · 5 answers · asked by sirdon1999 1 in Mathematics

2007-01-20 00:05:13 · 3 answers · asked by georgeygirl 5 in Medicine

2007-01-20 00:03:08 · 2 answers · asked by Anonymous in Zoology

(a)if w=4+3i and z= -3+2i,express
each of the following complex
numbers in cartesian form:-
(i)wz
(ii)conjugate of z
(iii)z^(-1)
(iv)w/z
(b)find a polynomial with real
coefficients whose roots are
(-2+7i) and (-2-7i)
(c)express the complex number
(-64) in polar form

2007-01-20 00:02:46 · 4 answers · asked by Anonymous in Mathematics

I need 2 diseases, different ones if possible please! thank you! mwa xx

2007-01-20 00:00:48 · 8 answers · asked by Anonymous in Zoology