Science & Mathematics - 29 November 2006

This claendar will have a keyboard to type in our schedule and some keys by clicking them it will tell me what i shud do on a special day! it is like a notebook! and also it shud have an lcd player to display time and date! wud appreciate if u introduce a source to help me on this project

2006-11-29 05:08:33 · 3 answers · asked by anyone! 1 in Engineering

If there had been infinite years before us would we have ever got to this point in time?

2006-11-29 05:06:07 · 9 answers · asked by ben w 1 in Astronomy & Space

2006-11-29 05:03:43 · 5 answers · asked by Kelly L 5 in Chemistry

. What emotions do humans feel about the moth

2006-11-29 05:03:26 · 16 answers · asked by Anonymous in Zoology

i gotta build an RPM meter for a dc motor for which the range of speed is from 30 to 3000 revolutions per minute.... i gotta make this speedomter with less than 0.1% error in metering....

2006-11-29 05:01:47 · 8 answers · asked by anyone! 1 in Engineering

2006-11-29 05:00:23 · 2 answers · asked by Justin C 1 in Mathematics

2006-11-29 04:59:21 · 12 answers · asked by karam 1 in Zoology

I want to use it for a science fair project

2006-11-29 04:59:20 · 6 answers · asked by cassie m 1 in Chemistry

2006-11-29 04:59:12 · 9 answers · asked by renganathan g 2 in Earth Sciences & Geology

int ( x-2 / x^2 +x^4 dx)

2006-11-29 04:59:11 · 2 answers · asked by moooona1987 2 in Mathematics

For engineering, we must make a car that looks real, and holds an egg. Must be less then 15 in long and 5 in wide. Must have a front bumper system and look real. Cannot be powered or use a break system. Vehicle must carry un cooked egg. Cannot use food items..you must see 50% of eggs, eggs must be removed 15 seconds after crash.eggs must be vertical in vehicle. no gluing or taping egg in vehicle.

My idea, crumble system with egg suspended with rubber band. car will crush in front... egg will wobble but be ok.

Car will go about 20 mph or something like that into a brick wall.

2006-11-29 04:59:09 · 11 answers · asked by sbrooks07 1 in Engineering

2006-11-29 04:58:12 · 1 answers · asked by pola 1 in Geography

2006-11-29 04:57:49 · 5 answers · asked by theresapoodleinmysoup 1 in Botany

2006-11-29 04:55:19 · 9 answers · asked by Dominik 1 in Astronomy & Space

2006-11-29 04:55:10 · 6 answers · asked by ramajith1986 1 in Engineering

2006-11-29 04:54:24 · 18 answers · asked by Anonymous in Medicine

i was just wandering if you sit up and scream when u get cremated coz the remaing oxygen from ur lungs has to escape.
guys i no death is not a very nice subject so no abuse please
i no im probably a freak but i just want to no if this is true

2006-11-29 04:54:16 · 24 answers · asked by Sarah B 3 in Biology

Can anyone help me out? I am wanting to take out a load bearing wall in a small bunglow (30x24) in advance of adding a second storey next summer. I want to support the existing ceiling joists running from front to back (12' each side overlapping in the middle) for a clear span of 15'. I was going to support the beam ends with three or four 2x6's running down thru the floor directly onto the main beam supporting the first floor (really beefy old school stuff).

I need to find out what size the beam should be to support new second storey bedrooms and new roof (and whatever snow sits on it!) and clear that 15' span.

I'm thinking it will be best to use steel to maximize head room passing under it in what will be a living room area?

Any help/advice/experience would be great! thx

2006-11-29 04:53:42 · 2 answers · asked by bfi_ottawa 1 in Engineering

I need someone to help me figure out these questions...please! I need to turn in my Chem hw today.

1. A solution is prepared by dissolving 200.1 g of NaOH (molar mass=40 g/mol) in enough water to make 851 mL of solution. Calculate the molarity of the solution

2. Give the correct formula of ions present when sodium carbonate is dissolved in water?

3. What is the net ionic equation for the reaction of any strong acid with a soluble strong hydroxide base, such as NaOH?

4. What ions are present in a solution of aqueous calcium chloride?

5. What ions are present in a solution of aqueous (NH4)2SO4?

6. What is the net ionic equation for the single replacement reaction Ca (s) + 2 HNO3 (aq)----> H2 (g) + Ca (NO3)2 (aq)

7. What ions are present in an aqueous solution of Iron (III) sulfate?

Thank you!

2006-11-29 04:52:56 · 2 answers · asked by Anonymous in Chemistry

a. C2h5OH(g) + 3 O2(g)----------------2CO2(g) + 3H2O(l) + 1367kj
b.CS2(l) +3O2(g)-----------------CO2(g) +2SO2(g) H'=-1105kj
c.H2O(l)----------------H+(aq) +OH- (aq) H'=+56.2kj
d.H2O(s) + H----------------------H2o(l)

2006-11-29 04:52:07 · 1 answers · asked by Nikki S 1 in Chemistry

do u know where Bleda is located?

2006-11-29 04:50:48 · 5 answers · asked by pola 1 in Geography

I want to prepare a proposal for a new project. I should prepare it according to RUP. Is it a kind of standard to present a proposal? would you give me some examples or templates?

2006-11-29 04:50:40 · 1 answers · asked by Anonymous in Engineering

2006-11-29 04:48:10 · 8 answers · asked by Anonymous in Engineering

A copper rod and an aluminum rod of equal diameter are joined end to end in good thermal contact. The temperature of the free end of the copper rod is held constant at 100°C, and that of the far end of the aluminum rod is held at 0°C. If the copper rod is 0.88 m long, what must be the length of the aluminum rod so that the temperature at the junction is 50°C?

2006-11-29 04:47:36 · 2 answers · asked by activegirl 1 in Physics

one # is three times another #. the sum of their reciprocal is 4/9. find the two #'s.

2006-11-29 04:46:34 · 8 answers · asked by montoya162001 1 in Mathematics

Right, a mass is moving in SHM on the end of a spring. The question gives me the force constant of the spring, and the amplitude of the motion. Thats all the info it gives.

The question asks, what is the maximum K.E. of this system.

I'm a bit confused because I can't see a way around the problem without knowing either the mass, or the frequency of oscillation

Can anyone give me any pointers?

2006-11-29 04:43:56 · 4 answers · asked by kirdish 2 in Physics

2006-11-29 04:42:19 · 7 answers · asked by Nia W 1 in Earth Sciences & Geology

i think this is really weird, why do ants do that. my mate say that they eat the ant after i know this is crazy but its freaking weird.
do u have any idea wat is happening?

2006-11-29 04:41:47 · 27 answers · asked by Sarah B 3 in Zoology

Please explain how to do this, I am lost.

2006-11-29 04:39:35 · 13 answers · asked by Dave 1 in Mathematics

A new planet is discovered beyond Neptune. A tiny moon is discovered to be orbiting it at a constant distance of 5.3x10^8 m from the planet's center, with a period of 1.2x10^7 s. What is the planet's mass? [Use SI ("standard" or "metric") units.]

2006-11-29 04:39:14 · 2 answers · asked by bri 1 in Astronomy & Space