Science & Mathematics - 9 November 2006

suppose a rt. triangle is there having natural base , perpendicular & hypotenuse.Another different rt. triangle is drawn parallel to the perpendicular of the first rt. triangle & starting from other side of the base(opposite to the perpendicular) also having natural base, perpendicular & hypotenuse .
Can a third rt. triangle having natural perpendicular & hypotenuse (base is the summation of the two bases of the other two rt. triangles) be created extending the hypotenuse of one rt. triangle and perpendicular of the other rt. triangle?

2006-11-09 20:25:22 · 5 answers · asked by rajesh bhowmick 2 in Mathematics

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2006-11-09 20:22:26 · 3 answers · asked by packiya raj k 1 in Mathematics

2006-11-09 20:17:18 · 4 answers · asked by inkspirations@sbcglobal.net 1 in Engineering

2006-11-09 20:06:54 · 20 answers · asked by dld542002 1 in Biology

2006-11-09 20:05:50 · 11 answers · asked by Anonymous in Zoology

2006-11-09 20:00:32 · 4 answers · asked by PIPI B 4 in Biology

hey, can u please help me on some physics!!....i mean, its only basic, says the teachers, but i dont seem to understand the concept!

There are two questions:
1] Why are there no 'ideal' system in existence?
2] Which has greater internal energy-liquid alcohol at 78 degrees C or gaseous alcohol at 78 degrees C? explain.
( is it gaseous, because the particles are far apart?)

2006-11-09 19:56:48 · 4 answers · asked by Anonymous in Physics

2006-11-09 19:48:23 · 6 answers · asked by arabi 1 in Physics

2006-11-09 19:45:06 · 25 answers · asked by tulip 4 in Astronomy & Space

2006-11-09 19:44:31 · 11 answers · asked by Anonymous in Biology

I know the length of the radius of the circle, and I want to know the length of the base of the triangle

2006-11-09 19:42:51 · 7 answers · asked by Kevin Arthur 1 in Mathematics

2006-11-09 19:40:47 · 5 answers · asked by the_devil 1 in Medicine

Recently when walking the foreshore I came cross this deformed fish bone. I was just wondering what caused this? Could it be a parasite, a dieses or maybe a genic disorder? Thanks for your help =)

Img Location:
http://www.geocities.com/kld078/FishBone.jpg

2006-11-09 19:33:41 · 4 answers · asked by Katrina 2 in Biology

place a flexible card board in the hoop in the mouth of the bottle and center asmall piece of chalk/coin over the opening of the bottle and flick with your fingertip from under the chalk by hitting the hoop on the inside

2006-11-09 19:29:05 · 2 answers · asked by Anonymous in Physics

2006-11-09 19:20:22 · 6 answers · asked by the_devil 1 in Medicine

2006-11-09 19:20:06 · 11 answers · asked by Anonymous in Zoology

2006-11-09 19:18:43 · 4 answers · asked by KP 2 in Medicine

Definition of bohr shift, biochemistry of bohr shift. Significance of bohr shift in a mammal.

2006-11-09 19:17:11 · 1 answers · asked by Anonymous in Chemistry

i want to buy a dolphin, how much are they, and where can i get one, or a few, ....not the team the mammel.

2006-11-09 19:17:03 · 15 answers · asked by EAT123 3 in Zoology

2006-11-09 19:13:20 · 7 answers · asked by jas_miller45 2 in Engineering

Is Zinc a chemical or physical property and tell why. I am so clueless about this.

2006-11-09 19:12:51 · 6 answers · asked by Anonymous in Chemistry

Create a toy, simple one.
Cheap, simple to play.
Easy to make.
based on physics(exclude nuclear)
has the WOW factor.

2006-11-09 19:11:41 · 3 answers · asked by ghostrider.com 2 in Physics

2006-11-09 19:05:03 · 3 answers · asked by mask 1 in Chemistry

2006-11-09 18:56:38 · 5 answers · asked by Anonymous in Geography

I guess I'm asking, what is everyone's second choice at an engineering institution?

2006-11-09 18:56:29 · 9 answers · asked by C.C. 4 in Engineering

I sometimes dream like going on a trip of the universe to actually see how big is the universe and never return from that trip to the earth

2006-11-09 18:52:43 · 9 answers · asked by Anonymous in Astronomy & Space

consider the amount of balloons a well voiced person can inflate.compress the ballon into a barrel at say,200' under water and then alow the barrel to pull a cable towards the surface of the WATER.compute the energy produced by the barrel rising and the energy nessesary to cause the air in the barrel to locate.this is a 17,000 year old tip.

2006-11-09 18:51:34 · 2 answers · asked by stratoframe 5 in Physics

2006-11-09 18:51:23 · 10 answers · asked by dorairaj r 1 in Chemistry

a surface via the 89N tension force in the tow rope (which is pulling horizontally). The two blocks are made of different substances; each has its own kinetic friction, uk with the surface. uk of mass1 is 0.2 uk of mass2 is 0.1 The tension in the rope linking the two blocks is: 1) 10N
2) 20N
3)22.3 N
4)29.6 N
5)36.9 N

2006-11-09 18:28:41 · 1 answers · asked by Vanessa M 1 in Physics

Suppose that we have a simple rc circuit , a dc source (V), a switch, a bobin (L) and a resistance (R) connected serial respectively, in steady state, current is V/R.
(V/R.(1-exp(-t.R/L) ). When we open the switch at t=0, current and voltages will change according to the following equations,

Current =V/R . exp(-t.R/L) and voltage drop across the bobin= - V. Exp(-t.R/L).

As seen very clearly, voltage drop across the bobin can not be higher than source voltage V, but we know very well that the instant we open the switch there are huge voltage spikes (10-20 times as high as the source voltage) across the bobin, so what is the problem with these equations that the spikes are not seen in these equations ? Of course one can say that “voltage across a bobin is L. di/dt at any time, you begin to open the switch at t=0, and the switch is open at t=0+ , so dt = 0+ - 0 which is very very small, and so L.di/dt is very very high.” Yes. But the equations given before is valid from t=0, right? I think Laplace transfroms is not enough to solve this problem.

2006-11-09 18:24:36 · 2 answers · asked by akg_dnn 2 in Engineering