Science & Mathematics - 9 January 2007

2007-01-09 07:14:49 · 2 answers · asked by rahul 1 in Engineering

i need to graph 3x+y=3 and 2x+y=4 and x-2y=4. i know theyre easy, but im busy doing the other problems and it would be a huge help. thanks a lot.

2007-01-09 07:14:49 · 6 answers · asked by Ben S 1 in Mathematics

2007-01-09 07:13:35 · 16 answers · asked by Ashley S 1 in Mathematics

2007-01-09 07:13:21 · 5 answers · asked by burninglovenyc 2 in Astronomy & Space

2007-01-09 07:12:50 · 10 answers · asked by liz h 1 in Physics

2007-01-09 07:09:48 · 1 answers · asked by Sled Queen 3 in Biology

I'm working on a schience project that has to do with photosynthesis. in my experiment i'm putting black trash bag scraps over the leaves but the plant isn't dieing even though i thought it would. is it possible that the sunlight is going through the trash bags and letting the plants use photosynthesis?

2007-01-09 07:08:54 · 11 answers · asked by Anonymous in Botany

can someone please explain

2007-01-09 07:08:39 · 7 answers · asked by Mighty Opinions 2 in Astronomy & Space

what is the difference between axial and centrifugal pumps?

2007-01-09 07:07:07 · 3 answers · asked by Anonymous in Engineering

Q2. Richard is making glass fibre. He starts with a with a diameter of 5cm and height of 8cm. He spins this into glass fibre with a circular cross section of 0.1cm. What length of the glass fibre does he make? Give your answer correct to the nearest metre.

Q3. A firm that sells cat food wants to change the size of its tins. The tin has a diameter of 6cm and height of 12cm

a)What is the volume of this tin correct to 1dp?
b)The new tin must have the same volume. The new diameter is 8cm. What is the height of the new tin? Give your answer correct to the nearest millimetre.


And I would be very greatful if you show me the working out so I can learn it? Thank you all. Much love.

2007-01-09 07:06:06 · 8 answers · asked by HelloSunshine:) 2 in Mathematics

These are liquid flow rates.

2007-01-09 07:04:51 · 3 answers · asked by BCorryjr 1 in Mathematics

A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.45 m. A third charge of +5 q is located on the x axis at such a place that the net electrostatic force on the charge at the origin doubles, its direction remaining unchanged. Where should the third charge be located?
x = ? m

2007-01-09 07:03:01 · 1 answers · asked by Jack W 1 in Physics

Would the free body diagram for a "sinking anchor" be Force friction at the top and Force weight at the bottom?

2007-01-09 07:01:39 · 4 answers · asked by Bella J 1 in Physics

nutrients etc

2007-01-09 07:00:11 · 1 answers · asked by erisa k 1 in Botany

2007-01-09 06:58:10 · 4 answers · asked by lindar 2 in Weather

A= bh over 2.
solve for h.

2007-01-09 06:54:03 · 4 answers · asked by Stephanie_ is_ bomb. 3 in Mathematics

Is there anyone who could please help me understand, our lecturers make things soooo complicated and I just want to understand what they mean in plain english instead of a load of stupid symbols!! Your help would be greatly appreciated thanks

2007-01-09 06:53:10 · 6 answers · asked by Amanda P 1 in Mathematics

I dont know how to constuct an anlge out of lines and segments.
I just dont.
Its the kind where you have to use your compass to make it congruent to the example.

I also dont know how to find the missing measurement of a triangle.

Everything else I get.

Algebra 2 sucks.

At least this section did.

Helpp

2007-01-09 06:52:26 · 3 answers · asked by Stephanie_ is_ bomb. 3 in Mathematics

2007-01-09 06:49:28 · 17 answers · asked by garden gal 2 in Physics

2007-01-09 06:49:24 · 12 answers · asked by mahesh d 1 in Astronomy & Space

2007-01-09 06:47:11 · 6 answers · asked by Kripster 1 in Weather

When you approch the speed of light, when (percantage wise) will you be traveling twice that of Earth year. AKA one year going that speed would be two years on Earth.

2007-01-09 06:44:35 · 3 answers · asked by sammalmsteen 2 in Physics

Light in a standard quantum model ie. an `infinite well' could well be considered as a standard frequency which is resonating under its natural frequency within the well.

2007-01-09 06:43:54 · 5 answers · asked by 007 Sentinel 1 in Physics

Does it hurt ? Will I be embarassed ?

2007-01-09 06:42:39 · 26 answers · asked by Me 3 in Medicine

Let's say..if we put a female and male roach on Mars?

2007-01-09 06:42:37 · 13 answers · asked by RUNINTLKT 5 in Astronomy & Space

Find exactly cos 150˚ + sin 225˚

2007-01-09 06:37:46 · 4 answers · asked by thomasgraham880 1 in Mathematics

I need to do this for the final exam coming up and I completely forgot.
HELP?!?

2007-01-09 06:37:22 · 4 answers · asked by Stephanie_ is_ bomb. 3 in Mathematics

for a science work sheet plz help

2007-01-09 06:34:19 · 14 answers · asked by hnxmn 1 in Physics

1 gallon of whole cows milk

2007-01-09 06:33:16 · 8 answers · asked by cherokee 1 in Zoology

2007-01-09 06:32:58 · 8 answers · asked by mahesh d 1 in Astronomy & Space