Science & Mathematics - 26 January 2007

Im doing project in RF based data transmission within short range..for that i thought of using Maxim 1472 & 1473 ic's for transmission & reception..is there any problem in using those ic's? also suggest me if any other good solution for this project..also if it is ok then where & how can i get those chips? kindly provide me enough details as soon as u can...

2007-01-26 16:43:07 · 1 answers · asked by priya d 1 in Engineering

My chemistry professor was explaining today that it is believed that there can be Silicon based life-forms at very high temperatures. Could someone please better explain this theory and give me an idea on what sort of temperatures would be required to host such a thing?

2007-01-26 16:40:46 · 3 answers · asked by Jakob K. 3 in Biology

2007-01-26 16:38:13 · 9 answers · asked by godha m 1 in Mathematics

2007-01-26 16:37:04 · 6 answers · asked by sridhar k 1 in Mathematics

Would placing sand along the coast of the river , thus increasing the side of the river so that in case any flood occured, the water would not over flow?

2007-01-26 16:31:25 · 9 answers · asked by Anonymous in Geography

All about Geometry.

2007-01-26 16:29:28 · 3 answers · asked by Nadare 2 in Mathematics

2007-01-26 16:28:33 · 6 answers · asked by meyer 1 in Other - Science

Thanks in advance for the help...

2007-01-26 16:28:18 · 8 answers · asked by theweirdguy1 2 in Chemistry

Euler's formula is v + f = e + 2. This means that the number of vertices on a polygon added to the number of faces equals the number of edges plus 2.

But for a tetrahedron, v=4, f=4, and e=6, and 4+4 does not equal 6+2. So what is wrong?

For a picture of a tetrahedron see http://www.greenend.org.uk/rjk/junk/tetrahedron.png

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Question# 12521835

2007-01-26 16:26:42 · 3 answers · asked by Anonymous in Mathematics

Would placing sand along the sides along the coasts of the river and increase the height of the coast, so that if any flood occur , it would be harder to overflow?

2007-01-26 16:25:25 · 5 answers · asked by Anonymous in Earth Sciences & Geology

explain what it means

2007-01-26 16:24:30 · 6 answers · asked by Anonymous in Mathematics

2007-01-26 16:18:14 · 18 answers · asked by Anonymous in Biology

2007-01-26 16:17:18 · 17 answers · asked by JoAnna 2 in Mathematics

2007-01-26 16:16:02 · 16 answers · asked by Anonymous in Other - Science

A spinner has 12 sections of equal area. The probability of spinning red is 1/3 and the probability of spinning red or yellow is 3/4. How many yellow sections are there?

2007-01-26 16:15:32 · 5 answers · asked by Felicia F 1 in Mathematics

i want to know the difference between MOSdiode and Schottky diode. plz give my links or ans. 4 this, thanks

its realted semiconductors

2007-01-26 16:15:29 · 2 answers · asked by speck197 2 in Physics

2007-01-26 16:14:45 · 3 answers · asked by Buffy Latrine 2 in Geography

My banana plant and cannas have been damaged by unusually cold weather this winter causing their leaves to turn brown and wilt. I have since covered the plants with sheets to prevent further damage. In the meantime, should I cut the leaves that have turned brown (almost all) or leave them until it warms up?

2007-01-26 16:09:34 · 5 answers · asked by lil 1 in Botany

how many ways can you chose a committee of 3 people from a group of 12?
a]3
b]36
c]12
d]72
e]220

toss a coin three times whats the probablity that it lands heads/tails /heads?
a]3/8
b]3/2
c]1/8
d]1/2
e]3/4

2007-01-26 16:07:36 · 5 answers · asked by koalabear 2 in Mathematics

2007-01-26 16:07:26 · 11 answers · asked by Anonymous in Botany

(2) Evaluate (2X) (5x)-23, where x=4.
(3)3p+(2-p), where p=3
(4)If x= -1,y=5 and z=2, find the value 3xy-2

2007-01-26 16:07:26 · 6 answers · asked by rosemariestewart64 1 in Mathematics

2007-01-26 16:03:45 · 10 answers · asked by Anonymous in Biology

2007-01-26 16:03:28 · 15 answers · asked by bronzearmour 1 in Other - Alternative

My friend keeps saying that they are monkeys...but in the same breath he also spelled gerbil "jerbil" and sloth "slot"......he's convinced....and its just so funny...i wanted to prove him wrong...

2007-01-26 16:00:04 · 9 answers · asked by Anonymous in Zoology

2007-01-26 15:58:42 · 9 answers · asked by kei46animax 1 in Engineering

I know static a charge is produced when fur is rubbed on amber etc. I want to know what caused the electrons to move.

2007-01-26 15:57:45 · 7 answers · asked by meg 7 in Physics

It was small as the city of Darwin.

2007-01-26 15:56:58 · 2 answers · asked by Anonymous in Weather

2007-01-26 15:54:46 · 17 answers · asked by Anonymous in Mathematics

How much heat (kJ) must be removed in order to change 1.40 moles of water at 56.0 oC to ice at -22.0 oC ?


The specific heat capacity of solid water is 2.03 J g-1 oC -1

2007-01-26 15:53:54 · 2 answers · asked by Anonymous in Chemistry

2007-01-26 15:51:03 · 15 answers · asked by luis a 1 in Mathematics