AL Phy at 25/4

久違

Originally posted by 麥旋風 at 2005-4-22 07:31 AM:

佢問When will Power delivered to the load resister be maximum
如果Power俾兩個分，S所分到既實細D
S要最大，R就要最細
所以係0

明白&唔該

kawai

痴9線
03年竟然犯8題硬膠錯

久違

Originally posted by kawai at 2005-4-22 05:55 PM:
痴9線
03年竟然犯8題硬膠錯

岩幾多條???

kawai

Originally posted by 久違 at 2005-4-22 06:30 PM:

岩幾多條???

24

久違

Originally posted by kawai at 2005-4-22 07:30 PM:

24

我一陣都做

麥旋風

Originally posted by Newcastle Fans at 2005-4-22 11:32 AM:

因為phy/a.maths差所以揀bio

因為Chem bio差
所以揀Pure Phy

CYBASTER

Originally posted by Newcastle Fans at 2005-4-22 11:32 AM:

因為phy/a.maths差所以揀bio

因為唔鍾意chem同bio同cs所以揀applied

beckham312oo

Originally posted by Sol_Campbell at 2005-4-21 11:08 PM:

4/3(pi R^2)

人地問你surface area 你答呢個??
不過題目又真係要用到mass/volume 的關係的(density),
not surface area
surface area 的確=4pi r^2



























打完先知畀你昆左

[ Last edited by beckham312oo on 23-4-2005 at 10:27 AM ]

Sol_Campbell

Originally posted by beckham312oo at 2005-4-23 10:24 AM:
人地問你surface area 你答呢個??
不過題目又真係要用到mass/volume 的關係的(density),
not surface area
surface area 的確=4pi r^2
...

我今朝睇番份paper先記起打錯左野,vol都係4/3 pi r^3
我將兩條式合埋左

不過應該係用surface area wor
pressure= force/area
m=P 4pi r^2/10就好似係ans

久違

Originally posted by kawai at 2005-4-22 07:30 PM:

24

29

小....做年年都係28,29,30....好似無進步咁

久違

03年有十幾題想問

２，３，４，９，１１，２０，２３，２７，２８，３４，４１，４３，４５

解到就解
一題都好
唔該

麥旋風

Originally posted by 久違 at 2005-4-23 02:15 PM:
03年有十幾題想問

２，３，４，９，１１，２０，２３，２７，２８，３４，４１，４３，４５

解到就解
一題都好
唔該

網上有冇題目？
因為我得C.W.Sham分左Topic既題目
唔知確實年份邊題打邊題

AI3

問題:如果冇tempature change 是唔是=no work done by gas?

Tung

唉...

kawai

Originally posted by 久違 at 2005-4-23 02:15 PM:
03年有十幾題想問

２，３，４，９，１１，２０，２３，２７，２８，３４，４１，４３，４５

解到就解
一題都好
唔該

43
太陽靠fission

34
左手面out of paper升緊
=>要b field in to paper多返
=>clockwise
右手面in of paper少左
=>要多返
=>clockwise
所以頭尾都clockwise

28
open
p=2v
q=1v
=>p to q

close
p=q=1v

change Q in 5uF=5uF x 1=5uC
change Q in 10uF=10UF x 1=10uC

total q=15uC

27
p.d across 2 ohm=4v
=>emf=12v
=>頭尾兩個2ohm分別分到4.8v
中間2.4v
每個1ohm分1.2v
i=v/r=1.2A

一陣再解

[ Last edited by kawai on 23-4-2005 at 08:56 PM ]

AI3

kawai 笞我

kawai

Originally posted by AI3 at 2005-4-23 08:51 PM:
kawai 笞我

tempature change不等於有w.d
w.d同volume change有關
w.d=p x (volume change)

AI3

Originally posted by kawai at 2005-4-23 08:54 PM:

tempature change不等於有w.d
w.d同volume change有關
w.d=p x (volume change)

thx

kawai

Originally posted by 久違 at 2005-4-23 02:15 PM:
03年有十幾題想問

２，３，４，９，１１，２０，２３，２７，２８，３４，４１，４３，４５

解到就解
一題都好
唔該

20
A
如果係咁telescope係放大唔到
因為telescope個M=Fo/Fe

11
mg=GMm/(r^2)
計M
再除返地球個volume

4
當佢條野一邊x一邊y
mx=m1y
m2x=my
自己solve

睇完阿bean再答

久違

Originally posted by kawai at 2005-4-23 09:08 PM:

20
A
如果係咁telescope係放大唔到
因為telescope個M=Fo/Fe

11
mg=GMm/(r^2)
計M
再除返地球個volume

4
當佢條野一邊x一邊y
mx=m1y
m2x=my
自己solve

睇完阿bean再答:ic ...

原來第4絛咁easy