Science & Mathematics - 15 October 2007

Use the capitalized words to decide if the statement is true or false.

1) GLYCOGEN is a type of polysaccharide found in muscle and liver cells of animals.

2) Fructose is sweeter than sucrose because fructose is a SIMPLER sugar than sucrose

3) Ionic compounds DISSOLVE in water

4) The association of a metal and nonmetal results in a COVALENT BOND

5) The bonding of amino acids results in a PROTEIN

2007-10-15 18:42:36 · 2 answers · asked by mz. * 1 in Biology

I'm a right brain superman, left brain cripple and I am just trying to get my head around this physics stuff...so the first theory of relativity is saying that the only way we can be "sync'd up" with REAL TIME is to move at the speed of light, in which case our mass would become infinite and we would be everywhere at once?

2007-10-15 18:41:58 · 2 answers · asked by Micheal M 4 in Physics

2007-10-15 18:33:36 · 5 answers · asked by Chad, M.D. 4 in Biology

Say that, from my frame of reference, persons A and B are moving perpendicular to the line between them, at the same velocity. Now suppose A shines a light in the direction of B. Since I see A and B moving with the same velocity, they must see each other standing still. Hence, according to A and B, B will see A's light. However, according to me, B is moving, so that by the time the beam reaches where B was when A shone the light, B will have moved and not been able to see it.

How does one resolve this paradox?

2007-10-15 18:32:55 · 3 answers · asked by TravisKidd 1 in Physics

If you stand under an umbrella in a rainstorm, where the drops fall vertically, you remain relatively dry. But, if you start running the rain begins to hit your legs even if they remain under the umbrella, why?

2007-10-15 18:26:59 · 2 answers · asked by jumba 1 in Weather

2007-10-15 18:26:49 · 11 answers · asked by kandukuri s 1 in Weather

It's for a Science Class. If you could tell me quickly how to find out , or answer the question it would help a lot. And no, I am not cheating...

2007-10-15 18:25:31 · 1 answers · asked by Anonymous in Chemistry

Tris(ethylenediamine)cobalt(II) nitrate


a) [Co(en)3](NO3)2

b) [Co(en)](NO3)2

c) [Co(en)3](NO)2

d) [Co(en)](NO3)

e) (NO3)2[Co(en)3]

2007-10-15 18:23:58 · 2 answers · asked by Nino 1 in Chemistry

Solve

2007-10-15 18:23:45 · 11 answers · asked by emily s 1 in Mathematics

There are 2 bottle of wine contain 800 ml each, and 2 empty glass with 300 ml capacity each, There is no instrument of measuring, How to divide the 1600 ml of wine to 4 people equally ?
Provide the steps.

2007-10-15 18:18:28 · 9 answers · asked by Isaac Proff 1 in Mathematics

a)use regression to find a polynomial function n of degree 3 (cubic)that can be used to estimate the number of x years after 1940
b)estimate the number of people 65 years old and older in the u.s. in 2008
c)in what year were there approximatly30 million people 65 yrs and older in the u.s.
year 1940 1960 1980 1985 1995 2001
person
older than 65 years 9.0 16.7 25.5 28.4 33.8 35.3
(million)

2007-10-15 18:17:04 · 1 answers · asked by jatin b 1 in Mathematics

(NH4)2[AuCl4]


a) ammoniumtetrachlorogold(II)

b) ammonium tetrachloroaurate(II)

c) ammonium chloroaurate(II)

d) ammonium tetrachloroaurate(III)

e) amminetetrachloroaurate(II)

2007-10-15 18:10:46 · 4 answers · asked by Just me 1 in Chemistry

decrease
increase
remain the same
or none
?

2007-10-15 18:03:47 · 7 answers · asked by Ismene 2 in Physics

2007-10-15 18:02:58 · 7 answers · asked by yogen 1 in Earth Sciences & Geology

2007-10-15 18:02:55 · 5 answers · asked by Anonymous in Biology

2007-10-15 18:01:16 · 1 answers · asked by yogen 1 in Earth Sciences & Geology

2007-10-15 17:57:05 · 2 answers · asked by yogen 1 in Earth Sciences & Geology

2007-10-15 17:56:25 · 3 answers · asked by Anonymous in Earth Sciences & Geology

can you tell me what natural resources,renewable resources and nonerenewable resources are? or just one. if you could that would help me a lot! thanks !

2007-10-15 17:55:22 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2007-10-15 17:54:54 · 3 answers · asked by Anonymous in Earth Sciences & Geology

We are doing direction derivatives in class and our lecturer is not really explaining much at all. I can't seem to understand how the direction vector is found at all. There is this question where the directional derivative is to be found at 1 point in the direction of another given point. I keep getting the direction vector wrong. Our lecturer didn't really clear up how the direction vector actually works and I still am not clear about it. It would be great if anyone can explain to me how the direction vector for let's say the following question is found:
Find the directional derivative of f(x,y,z)=y/(x+z) at P(2,1,-1) in the direction from P to Q(-1,2,0).
PS: I am not really sure if the direction vector is (2,1,-1)-(-1,2,0)=(3,-1,-1) or (-1,2,0)-(2,1,-1)=(-3,1,1)...HELP PLEASE!!!!

2007-10-15 17:54:30 · 2 answers · asked by Anonymous in Mathematics

2007-10-15 17:52:09 · 4 answers · asked by Anonymous in Earth Sciences & Geology

i have a question..
which compound contains the most number of ions per molecule
i) calcium chloride
ii) sodium oxide
iii) copper (II) bromide
iv) aluminum oxide

how to calculate it and some explanations about it also

2007-10-15 17:50:57 · 4 answers · asked by Dayang Z 1 in Chemistry

2007-10-15 17:46:35 · 21 answers · asked by Chris B 1 in Earth Sciences & Geology

If so, why or why not?

2007-10-15 17:46:20 · 12 answers · asked by Laughing with you not at you 6 in Biology

what are the chemical formulas for each

2007-10-15 17:46:19 · 2 answers · asked by ? 3 in Chemistry

2007-10-15 17:43:28 · 2 answers · asked by ? 3 in Chemistry

is it true or false that if the volume of an object below the water will equal the volume of water displaced by the object?"

2007-10-15 17:37:31 · 2 answers · asked by Anonymous in Physics

MIT has great Electricity/Mag, and Vibration/Waves lectures, posted online in video form. Does there exist, not neccesarily from MIT, that teaches Quantum Mechanics in the same way? Like in video form? Thank yoU!

2007-10-15 17:35:29 · 3 answers · asked by curtdbz 2 in Physics

A playground is on the flat roof of a city school, 6.00 m above the street below. The vertical wall of the building is 7.00 m high, forming a 1.00 m high railing around the playground. A ball falls to the street below, and a passerby returns it by launching it at an angle of 53.0° above the horizontal at a point 25.0 m from the base of the building wall. The ball takes 2.00 s to reach a point vertically above the wall.
(a) Find the speed at which the ball was launched.
m/s
(b) Find the vertical distance by which the ball clears the wall.
m
(c) Find the distance from the wall to the point on the roof where the ball lands.
m

2007-10-15 17:34:37 · 2 answers · asked by Anonymous in Physics