Physics Unit 4 JUNE 11/6/12

[étudiante]

no
seriously i didn study it ever b4 like 2day im studying frm the begining and past papers r wonderful 4 the ques's

IKR -.-"
btw m done wid the Sample assesment, u wanted to ask something?

 

[*Sandra*]

IKR -.-"
btw m done wid the Sample assesment, u wanted to ask something?

ya Q(6) and Q(14) part b i wrote the ans as the higher the temp the more power supplied is it correct? and q(18) part b(ii) i wrote as mass increases the speed will decrease and i used the formula f=mv^2/r and part (c) i didn kno how 2 solve

 

[étudiante]

ya Q(6) and Q(14) part b i wrote the ans as the higher the temp the more power supplied is it correct? and q(18) part b(ii) i wrote as mass increases the speed will decrease and i used the formula f=mv^2/r and part (c) i didn kno how 2 solve

Q6) Well initially even i dint get this but i guess this is because the chewing gum becomes a part of the system and causes a new natural frequency. Its not damping because the chewing gum at the back cannot sop vibrations or nething (imagine n see )

Q14) Well we need to relate the two eqns right? so u need to say that n = 4 and its a straight line with a y-interceot which is just like how it will be with Stephen-Boltzmann law

I'll just need to resolve Q 18) I lost the paper

 

[*Sandra*]

Q6) Well initially even i dint get this but i guess this is because the chewing gum becomes a part of the system and causes a new natural frequency. Its not damping because the chewing gum at the back cannot sop vibrations or nething (imagine n see )

Q14) Well we need to relate the two eqns right? so u need to say that n = 4 and its a straight line with a y-interceot which is just like how it will be with Stephen-Boltzmann law

I'll just need to resolve Q 18) I lost the paper

no prb i c unit 5 is easy bt im sad 4 nt studying b4 anyway hope it goes well

 

[étudiante]

no prb i c unit 5 is easy bt im sad 4 nt studying b4 anyway hope it goes well

Well apart from Astrophysics it is (but still hate it ) n me too, i gave more time to chem cuz i BADLY want an A* in it

Q18) This is what the mark scheme says but i dont understand it :S
both will complete orbit in same time period(1)
star covers small distance / orbit radius smaller compared to planet(1)

 

[étudiante]

c) Well the planet needs to be MASSIVE to allow the star to have more speed than them and produce a noticable Doppler shift

 

[*Sandra*]

c) Well the planet needs to be MASSIVE to allow the star to have more speed than them and produce a noticable Doppler shift

c) Well the planet needs to be MASSIVE to allow the star to have more speed than them and produce a noticable Doppler shift

ya phy is jst unlovely atall i tok it cuz i mst take either math or physics A level

 

[étudiante]

ya phy is jst unlovely atall i tok it cuz i mst take either math or physics A level

oh! well i admit i was extreeeeeeeeemly stupid to take up all my four subjects even for A levels
But now we just need to do it

 

[*Sandra*]

oh! well i admit i was extreeeeeeeeemly stupid to take up all my four subjects even for A levels
But now we just need to do it

ya ur ryt so btw wat ur doin nw?

 

[étudiante]

ya ur ryt so btw wat ur doin nw?

I'm doing past papers and then i'll switch to chemistry...
wat abt u?

 

[*Sandra*]

I'm doing past papers and then i'll switch to chemistry...
wat abt u?

ya past papers 4 phy the timing is 12:29 in UAE ryt?

 

[étudiante]

ya past papers 4 phy the timing is 12:29 in UAE ryt?

YUP
wat abt u? till when will u be here?

 

[*Sandra*]

YUP
wat abt u? till when will u be here?

wth me its 11:34 i don kno maybe half an hour more wat abt u its late wth u

 

[étudiante]

wth me its 11:34 i don kno maybe half an hour more wat abt u its late wth u

Well I'll prob be up till 2 or 4

 

[*Sandra*]

Well I'll prob be up till 2 or 4

ohhh then wat time u wake up?

 

[étudiante]

ohhh then wat time u wake up?

8 or max 9
wat abt u?

 

[*Sandra*]

8 or max 9
wat abt u?

same so it seems i slep more bt i hve 2 wake at 7 cuz i fel sad whn i c it 9 or more actually after ths long holidays i started waking late hmm ok i don wnt 2 disturb u nw cuz i kno u hve 2 exams after each other so u hve 2 finish hope u do well in exams

 

[étudiante]

same so it seems i slep more bt i hve 2 wake at 7 cuz i fel sad whn i c it 9 or more actually after ths long holidays i started waking late hmm ok i don wnt 2 disturb u nw cuz i kno u hve 2 exams after each other so u hve 2 finish hope u do well in exams

ahan i see
Its alright If u have nething, just post it here n we can solve it M really enjoying this group study honestly
n thanks Same to you too

 

[*Sandra*]

ahan i see
Its alright If u have nething, just post it here n we can solve it M really enjoying this group study honestly
n thanks Same to you too

same here i actually saw my bro using and discussing his doubts i didn kno its helpful bt i came 2 kno tht its really so helpful and we can meet sme gd frnds

 

[étudiante]

same here i actually saw my bro using and discussing his doubts i didn kno its helpful bt i came 2 kno tht its really so helpful and we can meet sme gd frnds

ahan i see Well ur bro mentioned u once before I remeber