dtclaw
發表於 2007-4-23 19:40:12
原帖由 Keith 於 2007-4-2307:36 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
Mechanics食緊屎, 成日用錯式計:icon102:
今晚搞唔掂聽日Heat就仆:icon092:
好在Heat冇Mechanics咁煩:(
HEAT好簡單je
記住mc△T差唔多讀晒
Keith
發表於 2007-4-23 19:41:38
原帖由 dtclaw 於 2007-4-2307:40 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
HEAT好簡單je
記住mc△T差唔多讀晒
我想問: 一隻蚊同MTR撞, 點解兩個Force係一樣?:confused:
唔係F=ma咩?
dtclaw
發表於 2007-4-23 20:05:09
原帖由 Keith 於 2007-4-2307:41 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
我想問: 一隻蚊同MTR撞, 點解兩個Force係一樣?:confused:
唔係F=ma咩?
係咪書個example?:icon101:
點解我搵唔番個題ge?:confused:
係邊頁?
vander
發表於 2007-4-23 20:07:03
原帖由 cnwong 於 2007-4-2211:54 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
仲有兩日
History好想A
希望得:icon101:
有冇tip essay?
Keith
發表於 2007-4-23 20:08:54
原帖由 dtclaw 於 2007-4-2308:05 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
係咪書個example?:icon101:
點解我搵唔番個題ge?:confused:
係邊頁?
唔係example, 係p.107
炎夏
發表於 2007-4-23 20:12:40
原帖由 dtclaw 於 2007-4-2307:40 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
HEAT好簡單je
記住mc△T差唔多讀晒
要識睇LATENT HEAT/SPECIFIC HEAT CAPACITY點解大左/細左
可能要點setup experiment
題外話,對左cit mc......
可能真係E:icon041:
炎夏
發表於 2007-4-23 20:13:59
原帖由 vander 於 2007-4-2306:02 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
module d有d數計下...
但係唔識計:icon102:
勁難:icon102:
A卷仲難過上年
有半條6分做唔哂空左:icon092:
dtclaw
發表於 2007-4-23 20:16:52
原帖由 Keith 於 2007-4-2308:08 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
唔係example, 係p.107
哦...
(a) 隻蚊承受既係架地鐵衝埋來道力,即係地鐵既f=ma:icon101:
而架地鐵承受既係newtons third law講既reaction force,即係一個相等而相反方向既力
即係話,兩個承受既force,magnitude係一樣
(b) 由a所知,兩者個f係一樣,隻蚊個m咁細acceleration梗係大幾萬倍啦:icon101:
(不過隻蚊應該粉碎:icon101: )
dtclaw
發表於 2007-4-23 20:18:07
原帖由 炎夏 於 2007-4-2308:12 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
要識睇LATENT HEAT/SPECIFIC HEAT CAPACITY點解大左/細左
可能要點setup experiment
題外話,對左cit mc......
可能真係E:icon041:
specific heat capacity大左/細左:eek2:
唔係一個constant來ga咩:eek2:
Keith
發表於 2007-4-23 20:18:35
原帖由 dtclaw 於 2007-4-2308:16 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
哦...
(a) 隻蚊承受既係架地鐵衝埋來道力,即係地鐵既f=ma:icon101:
而架地鐵承受既係newtons third law講既reaction force,即係一個相等而相反方向既力
即係話,兩個承受既force,magnitude係一樣
(b) 由a所知,兩者 ...
a)個度, 蚊冇自己既reaction pair架咩?
dtclaw
發表於 2007-4-23 20:24:49
原帖由 Keith 於 2007-4-2308:18 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
a)個度, 蚊冇自己既reaction pair架咩?
有
不過同樣都係newtons third law
地鐵會承受隻蚊衝埋來既力,隻蚊自己會受番個reaction force
由於兩度力都係一樣magnitude所以加埋都係一樣
force by the mtr= reaction force of the mtr
force by the mosquito = reaction force of mosquito
蚊: force by the mtr+reaction force of mosquito = MTR:reaction force of the mtr+force by the mosquito
力道都係一樣:icon101:
而且,隻蚊既force細到........:icon071:
炎夏
發表於 2007-4-23 20:25:15
原帖由 dtclaw 於 2007-4-2308:18 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
specific heat capacity大左/細左:eek2:
唔係一個constant來ga咩:eek2:
者係experiment果o的成日問你點解 l/c係大過actual value
之後答energy lost to surrounding果o的
如果phy易應該phy chem bio都易
點都望佢易啦嘩
Keith
發表於 2007-4-23 20:25:40
原帖由 dtclaw 於 2007-4-2308:24 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
有
不過同樣都係newtons third law
地鐵會承受隻蚊衝埋來既力,隻蚊自己會受番個reaction force
由於兩度力都係一樣magnitude所以加埋都係一樣
force by the mtr= reaction force of the mtr
force by the mosquito ...
明哂:icon101:
dtclaw
發表於 2007-4-23 20:26:44
原帖由 炎夏 於 2007-4-2308:25 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
者係experiment果o的成日問你點解 l/c係大過actual value
之後答energy lost to surrounding果o的
如果phy易應該phy chem bio都易
點都望佢易啦嘩
standard答案:icon101:
dtclaw
發表於 2007-4-23 20:27:19
原帖由 Keith 於 2007-4-2308:25 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
明哂:icon101:
see?
easy job:icon101:
chem就唔好問我啦:icon101:
Keith
發表於 2007-4-23 20:28:01
原帖由 炎夏 於 2007-4-2308:25 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
者係experiment果o的成日問你點解 l/c係大過actual value
之後答energy lost to surrounding果o的
如果phy易應該phy chem bio都易
點都望佢易啦嘩
其實冇定易唔易, 你識就好易, 唔識做就難:icon101:
dtclaw
發表於 2007-4-23 20:29:16
原帖由 Keith 於 2007-4-2308:28 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
其實冇定易唔易, 你識就好易, 唔識做就難:icon101:
:icon075: :icon075:
無論chem出成點我都會覺得chem難:icon101:
Keith
發表於 2007-4-23 20:30:12
原帖由 dtclaw 於 2007-4-2308:29 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
:icon075: :icon075:
無論chem出成點我都會覺得chem難:icon101:
唔好提chem:icon074:
dtclaw
發表於 2007-4-23 20:30:57
原帖由 Keith 於 2007-4-2308:30 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
唔好提chem:icon074:
我個次做份past paper淨係錯10題我都覺得自己好叻仔:icon101:
vander
發表於 2007-4-23 20:31:30
原帖由 炎夏 於 2007-4-2308:13 PM 發表 http://hkcm.hkehost.net/forum/images/common/back.gif
A卷仲難過上年
有半條6分做唔哂空左:icon092:
我做晒都唔知自己寫乜野:icon101: