翻譯問題 (關於物理)

2007-11-22 3:33 am
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1.摩擦力起源於原子間的電磁作用力,可以存在於 固態﹑液態或氣態介面間。
液態與氣態介面間:
由於雨滴與空氣間的摩擦,使得雨滴很快達到等速度下落(終端速度)的狀態。
否則從數千公尺高空落下的雨滴將會以極高的速度打在你我身上。(估算一下吧!)
固態與液態介面間:
水在水管內因摩擦而減緩流速,子彈若射入水中則比起空氣中威力大減,
高速公路上輪胎若沾上油 則減少輪胎與地面間摩擦 會鬧出大禍!
在兩固態介面間加入液態流體 經常用以減少 其間的摩擦,但並非消除。
固態與氣態介面間:
汽車行駛時大部份的能量損耗於將汽車前方的氣體推開。
太空船從外太空回地面時 外表與空氣間的摩擦產生高熱。
高空跳傘者最後也以某 終端速度落地!
固態與固態介面間:
鉛筆與紙張間的摩擦得以留下字痕,東西得以固定在某處,你我得以行走...

回答 (3)

2007-11-23 3:20 am
✔ 最佳答案
you go find the definitions, it's easy for you

摩擦力 is formed the 電磁作用力 within atoms, it could exist in solid, liquid, or gas state. since fiction is formed within dropping rain is 摩擦ing with air particles, it instantly increases its speed, however, there is a maximum speed. (why does maximum speed exists? well, consider that it increases its speed each feet in the air and the falling distance is thousands of meters.)

2007-11-22 20:40:27 補充:
in between solid state and liquid state:water's speed is slowed down by fiction caused with the pipe, same theory, when a bullet is shot straight in the water, its damage is greatly depressed.

2007-11-22 20:47:42 補充:
decrease* not depressed - - If a car drives over an oil pit, it reduces fiction causing with the ground, which might lead to severe car accident!in between solid state and gas state:A running car uses its most energy on pushing gases apart in front of it.

2007-11-22 21:00:38 補充:
decreased* sor = =When a spaceship returns to earth, fiction is caused when its surface is 摩擦ing with air particles which causes high temperature.a parachuter nevertheless would be landing with a maximum speed at last!

2007-11-22 21:00:53 補充:
in between solid state and solid state:字痕 is being 留下 within pencil and paper when they are being 摩擦ed; objects are stable in one specific point, and it's the reason that you and I could walk...

2007-11-22 21:03:35 補充:
摩擦 = rub"字痕 is being 留下 within pencil and paper when they are being 摩擦ed" -- writings are formed when a paper is being written by a pencil

2007-11-22 21:05:12 補充:
電磁作用力 = kinetic energy..??摩擦力 = ficitiondone, have fun lol
2007-11-26 11:12 pm
1.Frictional force originated from the electromagnetic effort among the atoms, could exist among solid state , liquid state or gaseous state interface.
Among liquid state and gaseous state interface:
Because of the friction among rain drops and air, the state that the speed of making the rain drops reach quickly etc. falls (terminal speed ).
Otherwise the rain drops dropped from high altitude of thousands of metres will be made on you and me at the extremely high speed. (Estimate! )
Among solid state and liquid interface:
Water slows down the velocity of flow because of rubing in the water pipe , if the bullet is kicked into water the might is reduced greatly in the air,
If the tire is stained with the oil and reduce the great misfortune that friction will make a noise out among the tire and ground on the expressway!
Add the liquid fluid often in order to reduce the friction during that time among two solid state interfaces, but does not dispel .
Among solid state and gaseous state interface:
Most energy loss pushing away the gas in the automobile the front when the automobile goes .
The friction among appearance and air produce the high fever on the spaceship goes back to the ground from the outer space.
The persons who parachute of high altitude fall at some terminal speed too finally!
Among solid state and solid state interface:
The friction among the pencil and paper can leave the mark of words , the things can be fixed and located in , we can walk ...
參考: me
2007-11-24 1:25 am
1. the friction force stems from the interatomic electromagnetism action, may exist in the solid state ﹑ liquid state or the gaseous state interface.
Liquid state and gaseous state interface:
Because friction between the raindrop and the air, causes the raindrop achieves the uniform velocity whereabouts very quickly (terminal velocity) the condition.
Otherwise the raindrop which falls from several thousand meters upper airs by the extremely high speed will hit on your my body.(estimates! ) solid state and liquid state interface:
The water slows down the speed of flow in the water pipe internal cause friction, the bullet, if injects Shui Zhongze to compare in the air the might to reduce greatly, on highway tire, if moistens greases, will then reduce between the tire and the ground the friction will make the catastrophe!
Joins the liquid state fluid during two solid state interfaces to use to reduce frequently the friction, but eliminates by no means.
Solid state and gaseous state interface:
The automobile goes when the major part energy loss in shoves open automobile's front gas.
Space ship returns to when the ground from the outside outer space friction between the semblance and the air has the high fever.
Upper air jumper finally also by some terminal velocity landing!
Solid state and solid state interface:
Friction between the pencil and paper's can leave behind the character mark, the thing can fix in somewhere, your I can walk…
參考: me`


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