Science & Mathematics - 11 July 2007

the solution is a nonelectrolyte
glucose dissolves because it can hydrogen bond with water
both (a) and (b) are true
both (a) and (b) are false

2007-07-11 11:43:25 · 3 answers · asked by Anonymous in Chemistry

0.33 moles
0.50 moles
0.67moles
1.0 moles

2007-07-11 11:40:48 · 4 answers · asked by Anonymous in Chemistry

THANKS

2007-07-11 11:40:08 · 2 answers · asked by Anonymous in Engineering

If you take a laser pointer and point it at the moon and move the laser pointer fast enough across the face of the moon, wouldn't you be able to get the point of light shown on the moon to travel faster than the speed of light across the moon given the distance the moon is from Earth and the time it would take to flick your wrist?

2007-07-11 11:38:52 · 10 answers · asked by Anonymous in Physics

pressure has virtually no effect on the solubility of liquids or solids
solubility always decreases as pressure decreases
solubility always increases as pressure decreases
solubility usually decreases as pressure decreases

2007-07-11 11:38:34 · 6 answers · asked by Anonymous in Chemistry

well , is there any real way of getting rid of water ??

2007-07-11 11:37:40 · 19 answers · asked by cliff6267 1 in Chemistry

the anode is the positive electrode
the cathode is the negative electrode
both (a) and (b) are true
both (a) and (b) are false

2007-07-11 11:37:07 · 3 answers · asked by Anonymous in Chemistry

2007-07-11 11:34:37 · 11 answers · asked by Skittles 1 in Mathematics

Law of Conservation of Energy
Law of Conservation of Mass
Law of Definite Composition
none, all of the above laws are applicable

2007-07-11 11:33:27 · 2 answers · asked by Anonymous in Chemistry

can not be determined without any other measurements?



%(w/w)
%(w/v)
%(v/v)
all of these

2007-07-11 11:32:31 · 2 answers · asked by Anonymous in Chemistry

they are smaller than 1 nm
they scatter light
both (a) and (b)
neither (a) nor (b)

2007-07-11 11:30:10 · 2 answers · asked by D 1 in Chemistry

2007-07-11 11:29:06 · 9 answers · asked by Anonymous in Mathematics

what is the freezing point of this solution?

2007-07-11 11:28:10 · 2 answers · asked by D 1 in Chemistry

2007-07-11 11:28:02 · 2 answers · asked by hillio m 1 in Engineering

2007-07-11 11:25:58 · 19 answers · asked by Em x 6 in Zoology

0.1 M NaCl
0.1 M BaCl2
0.1M AlCl2
All have the same conductivity

2007-07-11 11:22:32 · 2 answers · asked by D 1 in Chemistry

2007-07-11 11:21:49 · 6 answers · asked by Anonymous in Physics

THERE ARE 4 WEATHER FRONTS used by meteorologist. list the 4 types.

using the following data, determine which two fronts are described. what other characteristics about these two fronts could be added to the ones provided for you?
data front a: (1) ahead of the front the air is warm and moist (2) a sudden temperature change has occurred and (3) a thunderstorm has formed along the front.

data front b: (1) there is a gentle slope between two air masses (2) stratus clouds have formed and (3) there will be an increase in temperature when the front passes

2007-07-11 11:16:29 · 1 answers · asked by hillio m 1 in Earth Sciences & Geology

i just need to no how 2 find the domain jus by nowing the the rules (fg) and (gf). thank you!

2007-07-11 11:15:56 · 1 answers · asked by Anonymous in Mathematics

If I am in a spaceship traveling at a constant 22,000 miles per hour through space in a straight line then how long would a normal Earth 24 hour period be for me on the space ship? I came up with 23 hours 59 minutes and 57.167 seconds. Is their any way to prove this? Thanks for your help.

2007-07-11 11:14:58 · 5 answers · asked by justask23 5 in Physics

If y^n = x^3n, where n, x, and y are positive integers, then what is x in terms of y?

a) ^3(root)y --> not 3(root)y. ex. ^3(root)27 = 3
b) (root) y
c) y/3
d) 3y
e) y^3

pls explain or show work

2007-07-11 11:13:44 · 4 answers · asked by ? 2 in Mathematics

Apart from The Skeptic's Guide to the Universe, which I already know and love. And also apart from Skepticality, which I don't like.

2007-07-11 11:11:21 · 1 answers · asked by l z 3 in Other - Science

2007-07-11 11:09:40 · 7 answers · asked by jerryalanjr 1 in Physics

2007-07-11 11:00:04 · 11 answers · asked by Anonymous in Zoology

2007-07-11 10:58:21 · 7 answers · asked by Punkin 1 in Biology

If r = 3 in. and h = 4 in., find the slant height and the lateral area of the right cone

2007-07-11 10:57:43 · 8 answers · asked by Anonymous in Mathematics

and is there anything that can be used as an aphrodiziac to turn things around whilst on the medication?

2007-07-11 10:54:55 · 13 answers · asked by Tom Tucker 1 in Medicine

2007-07-11 10:52:12 · 3 answers · asked by JAMES 4 in Engineering

2007-07-11 10:51:53 · 3 answers · asked by Anonymous in Chemistry

Although the November 1949 Kilauea Iki eruption on the island of Hawaii bean with a line of fountains along the wall of the crater, activity was later confined to a single vent in the crater's floor, which at one point shot lava 1900 ft straight into the air (a world record). What was the lava's exit velocity in feet per second? in miles per hour? (Hint: If v0 is the exit velocity of a particle of lava, its height t seconds later will be s = (v0)(t) - 16t^2 feet. Begin by finding the time at which ds/dt = 0. Neglect air resistance.)

PS: please use derivatives and show step by step! thanks!

i can't decide whether v0 should be a constant or a variable. i think it should be a constant, so i treated it as such and came up with "s' = v0 - 32t" for the velocity function. but now i can't figure out how to solve for either variable.

2007-07-11 10:48:00 · 3 answers · asked by salmonella_jr 3 in Mathematics