Physics Unit 4 JUNE 11/6/12

[*Sandra*]

Thanksh yewww so much :')

ur most welcome

 

[étudiante]

ur most welcome

Sorry but would u mind giving me the question paper too? The place where I usually get my stuff from is blocked for some reason by my server :S Thanks a lot ^_^

 

[*Sandra*]

Sorry but would u mind giving me the question paper too? The place where I usually get my stuff from is blocked for some reason by my server :S Thanks a lot ^_^

ya sure and sory 4 the late response actually nw i logged on again

 

[étudiante]

ya sure and sory 4 the late response actually nw i logged on again

Its A-okay I was praying myself

N thanks so much

 

[*Sandra*]

Its A-okay I was praying myself

N thanks so much

ur welcme btw i hve a que in the study guide pg 74 thinking tast ques's can u help me in part (b)

 

[étudiante]

ur welcme btw i hve a que in the study guide pg 74 thinking tast ques's can u help me in part (b)

Ur solving the thinking tasks too? Isnt that for extension? I'll still check tho.. gimme 5 mins pls

 

[*Sandra*]

Ur solving the thinking tasks too? Isnt that for extension? I'll still check tho.. gimme 5 mins pls

the prb im nt able 2 solve them

 

[étudiante]

the prb im nt able 2 solve them

Chill sis we're not supposed to able to slove them, they are for extra research and knowledge, not from the course
Leave dem

 

[*Sandra*]

Chill sis we're not supposed to able to slove them, they are for extra research and knowledge, not from the course
Leave dem

ohh thnx alot ok last que and really sry i ned u 2 summarise me the standard candle

 

[étudiante]

ohh thnx alot ok last que and really sry i ned u 2 summarise me the standard candle

no problem
n pls dont be sorry umm.. u want me to explain what they are or how they are used?

 

[*Sandra*]

no problem
n pls dont be sorry umm.. u want me to explain what they are or how they are used?

evrythng abt them

 

[étudiante]

evrythng abt them

okay I'll tell u what i know

Standard candles r bright stars which are at known distances from the earth and their luminosity is fixed throughout the universe (for example, Supernovas are considered standard candles). If there is a star near a standard candle, we can compare it's luminosity with that of the candle and use this to estimate its distance from the earth. (using F = L/(4 * pi * d^2) the "F" can be estimated by comparison with a standard candle.)

 

[*Sandra*]

okay I'll tell u what i know

Standard candles r bright stars which are at known distances from the earth and their luminosity is fixed throughout the universe (for example, Supernovas are considered standard candles). If there is a star near a standard candle, we can compare it's luminosity with that of the candle and use this to estimate its distance from the earth. (using F = L/(4 * pi * d^2) the "F" can be estimated by comparison with a standard candle.)

thnx alot

 

[étudiante]

thnx alot

Ur most welcome

 

[*Sandra*]

Ur most welcome

hiii again i hve a que in the old past papers for thermal phy Q(10) is it 4 our new syllabus or no?

 

[étudiante]

hiii again i hve a que in the old past papers for thermal phy Q(10) is it 4 our new syllabus or no?

It can come, only that the temperature at sea level should be given

 

[*Sandra*]

It can come, only that the temperature at sea level should be given

so they'll gve us ryt? cuz then there r 2 variables and no temp is given and wat they mean by pv=constant?

 

[étudiante]

so they'll gve us ryt? cuz then there r 2 variables and no temp is given and wat they mean by pv=constant?

yeah they will otherwise u can make a guess that it's around 289K
That the product of is constant Its the same ideal gas equation as we did pv = nKT

 

[*Sandra*]

yeah they will otherwise u can make a guess that it's around 289K
That the product of is constant Its the same ideal gas equation as we did pv = nKT

and wat wil be the value 4 ths constant?

 

[étudiante]

and wat wil be the value 4 ths constant?

Just a sec i'll solve the question n show u what they mean the same question right?