Physics Unit 4 JUNE 11/6/12

[étudiante]

inshalla it wil be fine u finished revising it or nt yet?

Inshallah
no Still have half left

 

[*Sandra*]

Inshallah
no Still have half left

there is time u can finish inshalla so wat u r studying 4 2day?

 

[étudiante]

there is time u can finish inshalla so wat u r studying 4 2day?

I sure hope so
Been doing chemistry since morning, but i'll finish the chapter m doing currently n switch to bio...
wat abt u?

 

[*Sandra*]

I sure hope so
Been doing chemistry since morning, but i'll finish the chapter m doing currently n switch to bio...
wat abt u?

phy im doin ocillations and mny new thngs i came 2 kno 2day and then i'll be doin astophysics the best chapter hehe

 

[étudiante]

phy im doin ocillations and mny new thngs i came 2 kno 2day and then i'll be doin astophysics the best chapter hehe

oscillations is fun
n yeah. astrophysics is (NOT! )
I'll be doing this stuff tomorrow Inshallah

 

[*Sandra*]

oscillations is fun
n yeah. astrophysics is (NOT! )
I'll be doing this stuff tomorrow Inshallah

ya i like ocillations bt my prb cmes in graphs a lil bit the formulas wat im affraid of if they askd how u derive the formula cuz they did ths in unit 4

 

[étudiante]

ya i like ocillations bt my prb cmes in graphs a lil bit the formulas wat im affraid of if they askd how u derive the formula cuz they did ths in unit 4

THe graphs just require us to know the concept and the reasoning behind them (tho i usually learn den up as well n den try to understand)
which formulas r u talking abt btw? :S

 

[*Sandra*]

THe graphs just require us to know the concept and the reasoning behind them (tho i usually learn den up as well n den try to understand)
which formulas r u talking abt btw? :S

the change is displacement the formulas which we use always is oscillations bt i fel they can brng us any formula frm any chapter 2 derive cuz in unit 4 they askd abt 2-3 times 2 derive a formula

 

[étudiante]

the change is displacement the formulas which we use always is oscillations bt i fel they can brng us any formula frm any chapter 2 derive cuz in unit 4 they askd abt 2-3 times 2 derive a formula

ohhhh dose ones...
well, the ones we need to know how to derive are given in the syllabus and for the others they will give us enough information so that (hopefully Inshallah) we will be able to do them

 

[*Sandra*]

ohhhh dose ones...
well, the ones we need to know how to derive are given in the syllabus and for the others they will give us enough information so that (hopefully Inshallah) we will be able to do them

Inshalla and can u plz send me the syllabus cuz i don hve it

 

[étudiante]

Inshalla and can u plz send me the syllabus cuz i don hve it

Sure no problem I am going to only stick to the syllabus n not do the extra stuff in the books

 

[*Sandra*]

Sure no problem I am going to only stick to the syllabus n not do the extra stuff in the books

ya better

 

[étudiante]

Syllabus

 

[étudiante]

I always do that bcuz they obviously cant ask us nething out of the syllabus without giving sufficient info to work it out from what we know

 

[*Sandra*]

Syllabus

Thanks

 

[étudiante]

Thanks

Any time

 

[*Sandra*]

Any time

in 2011 jan paper Q 17 part (d) 1st we use the formula to find the number remaining then after tht y do they use A=decay constant x N if we already found the remaning caesium from the 1st equation?

 

[étudiante]

in 2011 jan paper Q 17 part (d) 1st we use the formula to find the number remaining then after tht y do they use A=decay constant x N if we already found the remaning caesium from the 1st equation?

Which question again? :S the rate one?

 

[*Sandra*]

Which question again? :S the rate one?

ya for jan 2011 Q 17 the 4 marks que

 

[étudiante]

First find the energy released using e = (delta)mc^2
then make it a ratio like 1fission = x J of energy, then yfissions = 2.5GW and cross multiply...
we dont have the number of molecules or half-life so we cant use the radioactive decay eqns