test.

[marypops!]

Moo light!

So... I looked at my homework for Biology...

1. Describe the structure of a mononucleotide. Ok, that could be easy.

2. Explain how complementary base pairing and hydrogen bonding are responsible for the double-helix structure of DNA. Huh?

3. How did Chargaff's data an Pauling's ideas support Watson and Crick's deductions on the structure of DNA? I'll have to read up on that...

4. Explain how the communication of science is important to developing new theories, in relation to the identification of the structure of DNA. Uh... OK...

Yup... Anyone know the answers, in full detail?

 

[CrazyChik]

*looks blank*
Nope.

 

[marypops!]

Drat -_-

 

[CrazyChik]

Sorry.

 

[xXTierneyXx]

:s

no idea, sorry!!

 

[Smiley.Socks]

ELIN!!!!
Keep me and my misery company!
xD

Hazz!!!

Poor Elin didn't get a tag!

I know.. like everyone got one.

Yeh because lucky Elin was away for the weekend.

It wasnt that good...

 

[CrazyChik]

How are you Elin?

 

[marypops!]

Looks like i'll have to look through the sheet I have.

A drop of oil of volume 10 to the power of -10m cubed (0.0000000001) spreads out on water to make a circular film of of radius 0.1m. What is the thickness and radius of a film formed from four such drops? Supposing that the thickness of an oil slick on the sea is a thousand times that of this kind of film, and that the density of oil is 900 kgm to the power of -3 (0.001) find the volume and mass of a slick which forms a rectangular area 20km x 5m.

Wow... Why must maths be part of Physics -_-

 

[Smiley.Socks]

Im okay thanks... xD

[[Look how many people got tags!!]]

And yourselfff?

 

[CrazyChik]

You'll get them soon Elin!
I'm ok.

 

[Smiley.Socks]

I dont need one

Thats good.. so, whats been going on when i was awaay?

 

[CrazyChik]

I dont need one

Thats good.. so, whats been going on when i was awaay?

I helped out at a show-jumping show on Saturday.
And I spent the remainder of my time talking to George about Mock The Week.
xD

 

[Smiley.Socks]

Ooo fun!!
I love Mock the Week xD

 

[marypops!]

What is the density of a diluted salt solution containing 60% by volume of brine. What is the density of a solution made by mixing 0.6kg of brine with 0.4kg of water. Take the densities of water and brine as 1000 and 1200 kgm to the power of -3 (0.001) respectively.

 

[CrazyChik]

Ooo fun!!
I love Mock the Week xD

Woot!
Do you think Russell is hot?
xD

 

[Smiley.Socks]

Russel isnt hot!! No way....

 

[CrazyChik]

Russel isnt hot!! No way....

He so is!!!
I'd say he's the best looking panel member but that wouldn't be saying much xD

 

[marypops!]

Elin, do you like Harry & Paul?

 

[Smiley.Socks]

He's the best looking panel member.. i'll give you that.

But its not that difficult

 

[marypops!]

The outlet of a tap is 5m below the water level in the supply tank. The cross-sectional area of the outlet is 75mm squared. What is the pressure at the outlet, and what force must be exerted on a plate held across it in order to stop water coming out.