Johnny Lam Cheuk Yin

本人有意想考ao/eo...都知競爭大架喇, 但係試下無妨既, 反正有興趣 ;]

下面有D問題唔知有冇相關人士可以幫一幫手? 萬分感激!

1.想問問考CRE有冇咩條件? 洗唔洗大學要讀社會系OR要超高GPA?

2.CRE考試範圍大槪有冇disclose到, 定係一定要報course? (想自己做d準備先 :] )

3.同埋入職年齡有冇話幾多?

4.我宜家大學yr2 (degree), 唔知宜家既我有冇咩可以準備?

thx~

我想問下如果我有一個spring system 吊住一個point mass.

我拉一下然後放手,佢行唔行natural frequency ?

according to beyond 2000 p.85 ,.... without external force,system vibrates freely and that frequency is natural frequency.... 但之後又話under steady state, system oscillate with a frequency equal to external force,又話independent of natural frequency...???!!! 好亂....

actually what is the relationship between forced oscillation , free oscillation , natural frequency , resonance???

thanks ,

何謂relative motion?? 如果一車輛moving without skidding, 推動它的係static friction , 而這friction 係冇 energy loss , 因為車輪跟地下冇 relative motion, 而主要嘅energy loss 係車軸跟車身which come from kinetic friction , 因為它們才有relative motion. 我這說法啱唔啱??

(既係話在行車(without skidding)時, 車輪跟本冇磨到地下, so , 冇relative motion between wheels and the floor)

那麼在braking(without skidding) 時, 地下跟車輪都係冇磨到so 冇relative motion in between, so in this case, braking 係 由energy loss due to kinetic friction between車軸跟車身 and 持相反方向嘅static friction 而做出來的效果

而all energy loss 都係去在 heat and sound energy between車軸跟車身, static friction 只不過係exteral force, 完全冇任何contribution on energy loss.我這說法啱唔啱??

那麼在braking(with skidding) 時, 地下跟車輪有磨到, so , 有realtive motion, 有kinetic friction , 有 contribution on energy loss so as the kinetic friction between 車軸跟車身 . 我這說法啱唔啱??

那麼在車轉向時, (with skidding or without skidding) 係唔係 都持以上相同concept

AL無讀Bio 入唔入到CU or HKU 嘅medicine ??????(CE 有讀Bio)

my AL subjects are: chin ,UE , pure math , phy , chem

my CE subjects are: chin ,UE, math, Amath, phy chem Bio

CU 個Jupas 到寫 HKAL requirements 係(3 science subjects including Chemistry)

禁pure math計唔計science subject?

又話我d AL subjects 上大學係八搭?係咪真家?(好擔心)

Thanks alot~~

我想問一些有關飛機師的嘢...

係香港有飛機師課程讀嗎?

如果有,係香港定外國讀好d?

如果係外國讀好d, 噤去邊個國家好?

噤係香港讀完大學之後再讀飛機課程,定係點?

有人話考完飛機師試後, 仲要等好耐先可以做飛機師(起碼十年)

唔知係唔係?如果係,當我25先考試,噤味35-40先可以做到機師?

飛機師平均有幾錢個月?

e我宜家, 做到飛機師的機會大唔大?

my information:

...................................................................

height:180cm, 有近視

CE 讀理科 (Maths,A maths ,PHY, CHEM)都有讀, 全部都係 "B"

有2X分 中文:5 Eng:4

A level 讀(Pure maths , phy ,chem)

..................................................................

宜家有d咩可以做 , 令做飛機師的機率大d?

(唔好叫我溫定書!!!我仲有A level 呀!!!)

Here are some english sentences , (((can you explain them in chinese!)

1. Mr Chan arrived home later than usual yesterday.

question on 1: arrive is (v.i.) , it should be followed by a

preposition,but why there arent?

2.a)We must take this possibility into account.=

b)We must consider this possibility.

why there is no ( into account)in sentence b

3. My father shaves himself every morning.

Is the about sentence correct?

4.Was she hurt herself when she fell off her bicycle?

It should not use "was" but "did" , why?

thank you!!!!!!!!!!!!!!!!

中六選科會唔會影響大學選科然後影響我想選擇的工作？

我大約仲有五至六年出去做野．．．．

做”藥劑師”是唔是一讀完大學就做得？

定係要做完doctor先　or 要再讀多幾年相關的課程　？

做”藥劑師”大約有幾多人工？

如我係讀完MBA後去找份有關的工作做，人工大約有幾多？

I want to ask a few questions only.

1. what is the differences between " Commodity , Convertible and

Fiat money"? (explain in Chinese , give example )

2. Wage, interest , rental income , divident . ...... They're all type of

earned money , what is the difference? Are there any more ?

3.Is income approach(calculating GDP) is requried in 09 CE?

4.Is capital and finacial account (BOP) is requried in 09 CE?

我想問吓係唔係所有物質都有重量(包括光子,wave , etc)?

i would want to ask is there any energy inside the substance when it is at rest?

will the mass of an object change when it is traveling ?

* there is only force in the substance when there is energy supplied

if the above sentence is correct , is there any energy supplied to the earth so

that it can be moved ?

E=mc2 is mean what?

the time will be stopped when something reached the speed of the light.

am i correct?

what will be the situation if something travel faster than speed of light?

如果我想表達一個人昨日踏左場波......

which of the following is/are OK?

1. he played football yesterday

2. he was played football yesterday

3. he was playing football yesterday

4. he was play football yesterday

which sentence(s) has mistake?

when should we use the above sentences?

1.pure acid and acid are different ? why they're different ?

2.calcium sulphate + lead nitrate . What will be formed ?

is the above is displacement reaction? if yes , can u teach me how to change ?( i only know like sodium sulphate + lead will form lead sulphate + sodium )

3.when sodium hydroxide added to lead(ll)nitrate. write down all observation(s).

thanks alot ~

Does covalent compound has high melting point ? why?

(chinese and simple explanation please )

我想要一些琴譜 (好聽) 六至七級的 (我喜歡浪漫的)

do you know NDS memory card (R4) add micro SD 的 公價係多少 ?

1. 1^2+3^2+...+(2n-1)^2=(n(2n-1)(2n+1))/3 for all positive integer n

2. Tn=n^+n

proof T1+T2+...+Tn=1/3(n)(n+1)(n+2)

3.use the formula 1^2+2^2+...+n^2=1/6(n)(n+1)(2n+1)

find the sum 1x2+2x3+...+n(n+1)

4.proof 1x2+2x5+3x8+...+n(3n-1)=n^2(n+1)

5.proof (2n^3+n)is divisiblr by3

6. 1^2-2^2+3^2-4^2+.....+(-1)^(n-1)n(n+1)/2

7.use 2(2)+3(2^2)+4(2^3)+...+(n+1)(2^n)=n(2^(n+1))

to show 1(2)+2(2^2)+4(2^3)+...+98(2^98)=97(2^99)+2

8.proof n^3-n+3 is divisible by 3 for all...... n.

1.proof 8^n-1 is divisible by 3

2.proof 1^2+3^2+......+(2n-1)=(n-(2n-1)(2n+1))/4

CAN YOU HELP ME TO PROOF

(k/2k+1)+1/((2k-1)(2k+1)) is equal (k+1)/(2k+3)

Prove , by mathematical induction , that

1^2-2^2+3^2-4^2+......+(2n-1)^2-(2n)^2 = -n(2n+1)for all positive integer n .

Hence , find the value of

1x2-2x3+3x4-....+49x50

朋友, 你們有什麼方法去計M.I的呢??WHY我次次做到n=k+1 的時候都計唔到ge

It too difficult !!!!!! teach me how to do . (little bit afraid of CE....) 死啦!!!

Prove , by mathematical induction , that

1^2-2^2+3^2-4^2+......+(2n-1)^2-(2n)^2 = -n(2n+1)for all positive integer n .

Hence , find the value of

1x2-2x3+3x4-....+49x50

朋友, 你們有什麼方法去計M.I的呢??WHY我次次做到n=k+1 的時候都計唔到ge

It too difficult !!!!!! teach me how to do . (little bit afraid of CE....) 死啦!!!

Prove , by mathematical induction , that

1x3+2x3^2+3x3^3+......+n(3^n)=3/4(3^n(2n-1)+1)for all positive integer n .

SP: You only need to do the part about......

Assume S(k) is true ...and below thanks