nike free Material composition birds flying over t

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material composition

read the following material compositions upon request.

there is a bird that can fly tens of thousands of kilometers across the Pacific Ocean, and it needs just a twig.

in flight, it is the branch in his mouth, tired, put that piece of tree thrown into the water, and then fly down to the branch

rest, hungry for fishing on a branch, sleepy to sleep on a branch. Who would have thought the birds into

successfully over the Pacific, but only by the branches of a small fraction.

Just think,nike free, if the bird is not the title of the branches, but all of the nest and food supplies, children will fall into the whole

with me, that bird has to fly up and Why ? According to the material composition

require custom conception, since the proposed title, optional sports (except for poetry); not

to do from the content and meaning of the material composition range,air max 95, less than 800 words .



I would like to drawn people! Proposition pumping fiercely wanted to slap the teacher - on behalf of my physics teacher.

to a bird dangling from tree branches flying the Pacific - what kind of the best intelligence required to make with such a story?

proposition teacher I do not know birds, how mighty, how wonderful. A normal way of thinking made me

help but wonder something. I can not tell you care about, dangling from the branches of a bird, how to flirt with your partner;

with you I do not care about, a bird can not swim, how fish stepping on branches; also do not tell you care about, the Pacific

waves will knock branches. I just ask you a question:

you know how much of a branch, before they can make a bird floating on the water?

as thick wire? Chopsticks so thick?

Zhaochou proposition teacher, let me teach you a formula on the buoyancy, if you want a piece of wood to move a bird

set, you need to meet the following conditions (the in respect to your intelligence, I do not use all letters):

buoyancy of wood - the wood's own gravity gravity + birds

wood to make the greatest impact, we Assuming the wood just below the water surface was completely stepped on.

you can conclude that:

water density × volume × gravity of wood - wood, wood density × volume × × gravity acceleration of gravity + weight of the bird

merger of similar items and simplified obtained:

wood volume × (density of water - the wood density - the weight of the birds

the density of water is about 1000 kg / cubic meters, and wood density 400-750 kg / cubic meter,air max tailwind,

our time being when the birds are smart, find a lighter, wood density of 500 kg / cbm .

can be drawn:

bird's weight / volume of wood -500 kg / m

simply, is this conclusion:

If a bird is 1 kg, then the volume of wood -1/500 m -0. 002 cubic meters -2 cubic decimetre cubic decimetre

2 What concept? - our common brick , about two!!!

what a kilogram of birds mean? so to speak, generally three or four pounds a normal weight hens, a kilogram,

is only small chicks.

the size of a chicken as a bird,这就是生活, the size of the title in moving two pieces of wood or brick is an arm thickness of

stick it? Even if you can, wind the resistance of wood, it makes the birds fly to the Atlantic Ocean, not the Pacific.

proposition may be said that his teacher big birds, big birds, but also heavy weight ah! titles that may not arm

thick stick, but rather a pillar of the.

short, science tells me. no matter what kind of bird, dangling from the branches would not choose to fly the Pacific. If we have

to do so, and certainly only Shaniao - drowned Shaniao feed the fish in the Pacific. For it is built on the Shaniao Shaniao

truth on the matter,nike air max trainer 2010时尚话语, only Shaniao only the letter.



zero reasons: first, the students do not follow the requirements of writing topics, but it held so much sophistry, the attitude is not very correct;

second , on the topic and the teacher does not respect, I do not know your language teacher who,gold christian louboutin shoes 将来中国可能产生的七件恐怖的事件, if I know who he is, I

will come to him to say bad things about you,nike air max 2010 women's running shoes, and, if your language teacher to see you write this essay,nike air max 2011 shoes, he will anger a

vomiting blood; Third, we can see from your article, you are a very good science student, so I

zero you will not give you less, I believe the number of physical and chemical test you can make back.

Comments: The student must have a look at the future maybe will be a rare scientist.


birds flying over the Pacific