2076 發表於 2005-5-11 14:21:02

Originally posted by MatthewChor at 2005-5-11 02:19 PM:

how about first case....dunno the motor hv resistance or not...:icon099:

佢無畀我當冇

Pt=mc (delta)T
sub晒落去計:icon112:

MatthewChor 發表於 2005-5-11 14:22:29

Originally posted by 2076 at 2005-5-11 02:21 PM:


佢無畀我當冇

Pt=mc (delta)T
sub晒落去計:icon112:
if no....there will be nth passing through the resistor....:icon019:

2076 發表於 2005-5-11 14:24:44

Originally posted by MatthewChor at 2005-5-11 02:22 PM:

if no....there will be nth passing through the resistor....:icon019:

又係wor

即係點? 佢都冇畀resistance

MatthewChor 發表於 2005-5-11 14:25:50

Originally posted by 2076 at 2005-5-11 02:24 PM:


又係wor

即係點? 佢都冇畀resistance
I noticed it after exam.....:icon099:
just like normal dryer....there is a switch to choose cold air/warm air:icon101:

2076 發表於 2005-5-11 16:03:05

同個fd傾完
原來跳水o個題resistive force 係2600N
last降落傘o個題個force係8800N

我兩個都錯:icon099::icon099:
再係咁C都冇埋:icon092:

MatthewChor 發表於 2005-5-11 16:07:37

Originally posted by 2076 at 2005-5-11 04:03 PM:
同個fd傾完
原來跳水o個題resistive force 係2600N
last降落傘o個題個force係8800N

我兩個都錯:icon099::icon099:
再係咁C都冇埋:icon092:
跳水is average wor....:icon110:

2076 發表於 2005-5-11 16:10:50

Originally posted by MatthewChor at 2005-5-11 04:07 PM:

跳水is average wor....:icon110:

問resistive force of water

1/2(60)(200)+(60)(10)(3)=F(3)

F=2600N

MatthewChor 發表於 2005-5-11 16:12:23

Originally posted by 2076 at 2005-5-11 04:10 PM:


問resistive force of water

1/2(60)(200)+(60)(10)(3)=F(3)

F=2600N
not average resistive force???:icon069:

2076 發表於 2005-5-11 16:16:36

Originally posted by MatthewChor at 2005-5-11 04:12 PM:

not average resistive force???:icon069:

咁你點計?:icon101:

MatthewChor 發表於 2005-5-11 16:17:51

Originally posted by 2076 at 2005-5-11 04:16 PM:


咁你點計?:icon101:
over the time also....:icon110::icon069:

2076 發表於 2005-5-11 16:19:15

Originally posted by MatthewChor at 2005-5-11 04:17 PM:

over the time also....:icon110::icon069:

time not given wor:icon062:

MatthewChor 發表於 2005-5-11 16:19:51

Originally posted by 2076 at 2005-5-11 04:19 PM:


time not given wor:icon062:
found it from v,u,s:icon101:

just let it be~:icon101:

2076 發表於 2005-5-11 16:21:11

Originally posted by MatthewChor at 2005-5-11 04:19 PM:

found it from v,u,s:icon101:

just let it be~:icon101:

唔記得左lu
淨間問多幾個fd:icon101:

MatthewChor 發表於 2005-5-11 16:23:12

Originally posted by 2076 at 2005-5-11 04:21 PM:


唔記得左lu
淨間問多幾個fd:icon101:
it is just 3pts...
maybe i got the wrong meaning of the question:icon099:

2076 發表於 2005-5-11 16:25:31

Originally posted by MatthewChor at 2005-5-11 04:23 PM:

it is just 3pts...
maybe i got the wrong meaning of the question:icon099:

問多一個fd
no average

我唔記得左要加loss in pe:icon099:

MatthewChor 發表於 2005-5-11 16:30:28

Originally posted by 2076 at 2005-5-11 04:25 PM:


問多一個fd
no average

我唔記得左要加loss in pe:icon099:
but i really saw the word average:icon099:

choy991044 發表於 2005-5-11 18:28:25

難唔難?

pancake 發表於 2005-5-11 18:35:03

Originally posted by choy991044 at 2005-5-11 06:28 PM:
難唔難?
no~but陰

CYBASTER 發表於 2005-5-11 18:42:46

淺既卷先唔好啊

其實今年改左形式
拎A會唔會要再高分d呢?

deltagod 發表於 2005-5-11 18:46:43

我想問 o下Phy囉D 既話
mc要o岩幾多題????
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