The amount of air needed is given at STP - but the volume of the lungs are at a different T,P so you need to work out either how much air is needed at lung T,P or the lung volume at STP
No force is needed to keep the Earth rotating (remember Newton's 1st law) if you wanted to change the rotation then you would need something for the force to act against
It doesn't say the momentum decreases.
The number of colisions / time with the container walls decreases which gives a less force on the walls and so a lower measured pressure.
Note in an ideal gas you ignore any collisions between the gas molecules.
Don't know how many of these played in America - and a few of them are a bit 'British' in their humor to travel well.
http://www.bbc.co.uk/sitcom/winner.shtml
Only Fools and Horses (1981–2003)
Blackadder (1983–1989)
The Vicar of Dibley (1994–2007)
Dad's Army (1968–1977)
Fawlty Towers...
Your standard Smaug-class middle Earth dragon has a hide made of gold encrusted with diamonds and sapphires to make them invulnerable except for a single vulnerable spot.
In the Discworld, the only way to guarantee hitting a dragons vulnerable spot is a million to one shot. which is why it's...
http://www.arduino.cc/
The language is c, but the programming in a uc is so limited that there isn't much difference between c and basic.
The important points are the dev environment is nice, a gui editor with a single button compile and download, and vast online resources and users sites
(CH₃)₃CCH₂CH(CH₃)CH₂CH₂CH₃
The first paranthesis means the group in parenthesis is repeated the number of times in the subscript, the second set mean that the group is separate and attached to the atom next to it.
In solution it's Calcium bicarbonate, when you heat it the reaction forms calcium carbonate (limescale)
Ca(HCO3)2(aq) → CO2(g) + H2O(l) + CaCO3(s)
It means your water tastes nice and will have lots of useful minerals in it - at the cost of using a bit more soap and needing a new kettle every...
Having dealt with all the important matters of the economy, living standards and national security - and having decided that dealing with an inability to win at ice hockey is unsolvable - the Canadian government has finally stamped down on those wreckers of society.
Dire Straits have been...