Science & Mathematics - 23 November 2006

2006-11-23 09:56:18 · 11 answers · asked by goring 6 in Physics

2006-11-23 09:54:37 · 18 answers · asked by granty 1 in Astronomy & Space

Also find slope and y-intercept of y = 3x -2 and y + 4x = 8
I have a mind block seems like and can not understand the examples. Thanks for the help.

2006-11-23 09:53:16 · 9 answers · asked by Ken H 1 in Mathematics

I know that a ketone will result from a reaction of a 2 degree alcohol with PCC and that aldehyde will result from a reaction of 1st degreee alcohol with PCC. But will Ketone, or neither ketone/aldehyde result from a reaciton of a third degree alcohol with PCC? Why? Can someone explaing it to me... thanks

2006-11-23 09:52:34 · 2 answers · asked by AUNIDLY 1 in Chemistry

In a lab testing the reactions of catalase (enzyme formed in the liver tissues), what are the main purposes of crushing the liver with sand? What does it do to the reaction rate?

2006-11-23 09:48:17 · 4 answers · asked by abc2612546 2 in Chemistry

we can allready insert micro chip sensors into the brain where do we go from here?

2006-11-23 09:47:52 · 7 answers · asked by michael 2 in Biology

in an evaporator at the expansion valve bulb the temperature is 10 degrees at say 30psi ( 2 bar ) is there a certain saturation temperature corresponding to the pressure of the refrigerant and can this be read of my gauges.. eg 2bar would be -10 with 134a

2006-11-23 09:47:31 · 2 answers · asked by sweetiboy 1 in Engineering

2006-11-23 09:42:31 · 5 answers · asked by CHEWIE 1 in Geography

2006-11-23 09:39:56 · 1 answers · asked by navig8r 3 in Earth Sciences & Geology

Why are thing moving a what causes them to move?Wouldnt a restrained Universe really be the cause of all motion?

2006-11-23 09:38:45 · 3 answers · asked by goring 6 in Astronomy & Space

(forget the religion part at the end) and tell me what you think don't go on about religion because i don't believe in religion. but it has something to do with a matrix thing! Makes you think!

2006-11-23 09:36:55 · 9 answers · asked by Anonymous in Astronomy & Space

x+y=4
2x-y=2

2006-11-23 09:29:55 · 3 answers · asked by Elsa R 1 in Mathematics

hey, i'm doing this chemistry project for my assignment, and i would really need to find a table of chemical potential of elements/chemical equations. i've been searching for one for hours, just cant find any. any ideas please?

2006-11-23 09:27:40 · 2 answers · asked by scoobydoobydoo 1 in Chemistry

Field equation of Einstein;
Guv =( Lamda/energy density of space) x Tuv,
doesnt it relate to Newton Universal gravity constant and also to the curvature of mass as well?

2006-11-23 09:25:42 · 5 answers · asked by goring 6 in Physics

i need as many effects of a heatwave NOT INCLUDING the following:

b.
closure to schools
concrete expands cracks and the tar melts
railway lines expand to the point where they buckle
water becomes on a shortage and the older people can die


4.
Effects of a Heatwave:

1.humans die
2.animals die
3.plants and crops get destroyed
4.(above) putting starvation on the country's
5.fires from crops/power lines
6.

2006-11-23 09:22:03 · 3 answers · asked by danderton1 1 in Geography

2006-11-23 09:21:15 · 3 answers · asked by ... 1 in Chemistry

If The Universe would be constinously growing then there is no limit to its curvature and Einstein's field equation still apply?

2006-11-23 09:18:56 · 3 answers · asked by goring 6 in Physics

2006-11-23 09:16:43 · 3 answers · asked by B 3 in Mathematics

2006-11-23 09:15:15 · 10 answers · asked by lilfriscogurl2002 1 in Zoology

A V-Shaped animal trough which is made up of two planks of wood having width 0.5 metre and length 6 meters closed at the end by ends by a vertical sheet of timber. Determine the depth of the trough such that it holds a maximum amount of water?

The cross section is V- Shaped.

I know i have to set up an equation, differentiate it find maximums bla bla bla. But i cant set up the Equation!

Can anyone help?

2006-11-23 09:11:54 · 9 answers · asked by Stevie B 2 in Mathematics

2006-11-23 09:11:30 · 4 answers · asked by Dan 1 in Mathematics

2006-11-23 09:08:55 · 2 answers · asked by Dan 1 in Mathematics

An Austrailian Astronomer was the first to notice it 40 years ago and it said in the article it would take a hundred years to hit the earth but the Americans think its now only about twenty five years away, the Americans have been concentrating on removing the threat. It seems they are going to try to tilt it off couse, the asteroid is half a mile wide. Have any of you heard about the asteroid and has it got a name.

2006-11-23 09:03:48 · 16 answers · asked by Redmonk 6 in Astronomy & Space

2006-11-23 09:02:32 · 5 answers · asked by toby w 1 in Biology

why no cube or rectange or triangle

2006-11-23 09:01:45 · 23 answers · asked by cazzay 1 in Earth Sciences & Geology

A BD Company purchases chains from a third party supplier. The chains are required to be within 0.25” of 54 inches in order to work properly. If the chains are too slack or too tight the derailleur won't work. Chains are supplied by the BJ Company and the individual links are not exactly uniform. They fluctuate around a mean length of 0.5”, with a standard deviation of 0.01”.

- How many links should be strung together to form a chain?

- What proportion of the chains would meet BD's standards?

- Supposed BJ Company wished to reduce the proportion of chains that failed to meet Bridgestone’s standards to one third the current value to what value would they have to change the standard deviation of the length of the individual chain links?

Any ideas?!

Thanks in advance!

2006-11-23 09:01:17 · 1 answers · asked by abe_cooldude 1 in Mathematics

2006-11-23 09:01:14 · 5 answers · asked by goring 6 in Physics

I remember several years back hearing of a study done on plants, where some sort of electro-detection machine (sorry for my vagueness, for I was in middle school at the time and had bigger things to worry about than the exact method of this test) was used to check for any sign of fear in plants.

Then, one girl in the class was selected to kill one of the plants sitting in a group of them. After that, the class was lined up to parade by the row of surviving plants, and there was a spike in the meter of the plants when the girl who killed the one plant marched near. Supposedly, this was to find if plants could fear death, or something of the like.

Has any one else heard of this experiment? Would anyone know the name to it? Or where I could find the details of it?

Thank you for your time.

2006-11-23 08:58:57 · 6 answers · asked by anything_but_this_again 2 in Botany

2006-11-23 08:58:56 · 2 answers · asked by goring 6 in Physics

2006-11-23 08:58:42 · 2 answers · asked by schoolgirl 1 in Chemistry