Question Time!

CrimE

lol theres just so many questions you can get out of chemistry, but ill do my best to ask different subjects now

Shrimp

Ok just to kick start it again:

In geography, what is intranational migration?

Nice and easy!

deisedolly

That's not easy!
What poem is this line from : 'The world is charged with the grandeur of God'??

Shrimp

Here you cant just skip a question, give it time, it is easy enough!

Gerard Manley Hopkins By the way..

abercrombie

Shrimp wrote:

Ok just to kick start it again:

In geography, what is intranational migration?

Nice and easy!

if only i did geography...

4Xcut

Don't do geography, but is it migration within a given country?

CrimE

Shrimp wrote:

Ok just to kick start it again:

In geography, what is intranational migration?

Nice and easy!

Anyone?

seamus

CrimE wrote:

Anyone?

Um, migrating within a country (e.g. from Dublin to Cork)?

angeldelight

cookiemonst3r wrote:

i thought u didnt need to know the proofs for formulae

You need to know some of the proofs for Higher Level. There's not very many though, they took the majority of them off when they changed the syllabus.

cookiemonst3r

angeldelight wrote:

You need to know some of the proofs for Higher Level. There's not very many though, they took the majority of them off when they changed the syllabus.

what subject are we talkin here?? physics or applied maths??

angeldelight

cookiemonst3r wrote:

what subject are we talkin here?? physics or applied maths??

Physics.

If you go to http://www.education.ie you can download the Physics syllabus, on page 56 of which there's a list of all the formula you need to know. The ones you need to be able to derive are marked.

Shrimp

Migrating within a country (e.g. from Dublin to Cork)?

yeah, next question?

RefulgentGnomon

Maths:

If the roots of the equation ax^2 + bx + c = 0 have a difference of 1.
Verify that b^2 - a^2 = 4ac

abercrombie

RefulgentGnomon wrote:

Maths:

If the roots of the equation ax^2 + bx + c = 0 have a difference of 1.
Verify that b^2 - a^2 = 4ac

*WHOOOOOSSSHHHHH*

oh there it goes...over my head!!

d4gurl

ok i need urgent help in this maths question!! Its paper two 2000 question 6a
A bank givese each of its customers a four digit personal identification number which is formed from the digits 0 - 9 inclusive. Examples 2475,0865 and 3422

(i) how many different personal identification numbers can the bank use?

(ii) If the bank decided not to use personal id numbers that begin with 0 how many differnet numbers can it use??

Ive tried examination.ie they only give markin scheme till 2001!so im really stuck! I have a feeling the back of the exam papers are wrong and if they are right please tell me someone the methodology!!? Here is the anwser I am getting
(i) 5040
(ii) 4536

Please help thanks !

caesar

^
We haven't covered that topic/chapter in school yet however I think I might be able to help you but remember Im only trying to help
So here goes part i) You have a 4 digit pin in which each digit can range from 0-9(thats 10 digits)

Just look at this First digit 0-9= 10 possible [part ii) 1-9= 9 possible] Second digit 0-9= 10 possible
Third digit 0-9= 10 possible
Fourth digit 0-9= 10 possible
So its 10x10x10x10(or 10^4)= 10000
And that is the answer in the back of the exam papers

For part ii) the first digit has a range of 1-9 so thats 9 digits(see part in bold above)
So its 9x10x10x10= 9000
And thats the same as the answer in the back of the exam papers

I'm sorry if this has made you more than before and I know that I would never make a teacher but I hope this helps nonetheless. I dont think the above is the correct/best methodology and it probably only makes it harder than it actually is, again I'm only trying to help

Funkstard

ok i need urgent help in this maths question!! Its paper two 2000 question 6a
A bank givese each of its customers a four digit personal identification number which is formed from the digits 0 - 9 inclusive. Examples 2475,0865 and 3422

(i) how many different personal identification numbers can the bank use?

(ii) If the bank decided not to use personal id numbers that begin with 0 how many differnet numbers can it use??


i) 10 x 10 x 10 x 10 = 10000

You can use the numbers more than once, so there's 10 possibilities for each number.

ii)9 x 10 x 10 x 10 = 9000

The first number only has 9 possibilites, since you can't use 0. However, for the subsequent digits you can use 0, so there's 10 possibilities

Shrimp

ok here's a new question...

Finish the Quote.. "Come not between the ______ and ___ _____"

4Xcut

Come not between the dragon and his rath

deisedolly

What poet is a 'ceiling without a star'???

Shrimp

4Xcut wrote:

Come not between the dragon and his rath

I believe it's wrath not rath..

As for your questions deisedolly it is Sylvia Plath.

RefulgentGnomon

You didn't ask a question so i'll oblige:

Chemistry
What does the aufbau principle state?

cookiemonst3r

Aufbau Principle:electrons occupy the lowest energy level available

My question: What are the 5 factors that affect the growth of bacteria??

deisedolly

A jaysus I'm doing bacteria now and I still don't know the answer to that! Is is temperature, ph and stuff like that? Shows what road I'm headin down for the leaving cert!

d4gurl

Thanks for the help guys! The topic never came up for my test but its a guarantee on the LC so cheers btw have not done bacteria yet! How about What is Paulis exclusion rule in chemistry?

Anto and Moe

Temperature, pressure, oxygen concentration, pH and External solution concentration! They should release this game for the playstation, it'd be a smash hit!

Question: What might a mycoligist study?

rainbow kirby

Fungi

Give the definition of the ampere.

Scarinae

d4gurl wrote:

How about What is Paulis exclusion rule in chemistry?

Not sure of the exact definition but it's something like electrons fill a sublevel in pairs and have opposite spin...

Funkstard

All you ****ing science nerds!

kano476

how many meerkats does it tke to change a lightbulb?