[d_94]

(Original post by iesians)
i dont think we need to know a lot of detail about it!

i just know that we have only made a fission reactor, a fusion reractor is still impossible..

fission reactor :-

a fast neutron strikes the heavy element disintegrating it into smaller nuclie and multiple neutrons which start this disintegration process again...

moderator :- it is a rod made up of graphite usually, it slows down exxcessively fast neutrons in order for them to be absorbed in the heavy atom.


control rod :- this rod is made up of boron or cadmium. this rod ABSORBS neutron in order to halt the reaction from going on happenin . thus it effectively stops the fission reaction, it is a very crucial part as fission keeps on producing neutrons which can keep on bombarding with elements becoming uncontrollable ! thus a control rod is necessary, IN an atomic bomb , a control rod is absent and thus fission reactions reach to such a state that the huge amount of released energy results in explosion.

FUSION reactors arent possible still, as a very high temperature and pressure is needed for successful fusion, such strong reactors cannot be made, also the density of atoms should be very high and thus it is not possible for a fusion reactor to function properly in near future.

Thanks sooo muchh! (:

[iesians]

im gnna beat every1 here now !!! dont you have questions or what ..>?!?!!?!

[iesians]

why is iron the end product of all fusion and fission reactions ..?!

[d_94]

Heyy
Good question, but I'm not suree why.

[Alexok]

(Original post by iesians)
how do we use P=E/t in specific heat capacity..?!

It would represent rate of energy transfer. Using E = mc delta theta. u calculate energy change. Then E/t for rate of transfer.. although they sometimes give you power and you gotta just do it other way round.

Or sometimes they provide you with volume of gas or liquid movement rate, in kgs-1. There they would also give you power (Js-1) and you can calculate theta or c using E/s= m/s x c x delta theta. The s-1 cancels out..

Sorry if this is kinda confusing lol

[iesians]

(Original post by Alexok)
It would represent rate of energy transfer. Using E = mc delta theta. u calculate energy change. Then E/t for rate of transfer.. although they sometimes give you power and you gotta just do it other way round.

Or sometimes they provide you with volume of gas or liquid movement rate, in kgs-1. There they would also give you power (Js-1) and you can calculate theta or c using E/s= m/s x c x delta theta. The s-1 cancels out..

Sorry if this is kinda confusing lol

now thats what i was looking for ! u da bessst ! ♥

[iesians]

ok how can you prove SHM by looking at the desplacemnt time graph and acceleration time graph ..?!

[iesians]

how do you find the NATURAL FREQUENCY of an oscillator...??!

[iesians]

im seriously gnna kill everyone !! guys post stuff be active !!!!!!!!!!

[d_94]

(Original post by iesians)
im seriously gnna kill everyone !! guys post stuff be active !!!!!!!!!!

HahaHaha. I know right!
Unit 5 is way easier than Unit 4
Ughh. I'm freaking out for Unit 4 next week.
Btw I already gave ya the notes for SHM, right?

[iesians]

(Original post by d_94)
HahaHaha. I know right!
Unit 5 is way easier than Unit 4
Ughh. I'm freaking out for Unit 4 next week.
Btw I already gave ya the notes for SHM, right?

yup ! thanks for tht
but i wanna know how can you calculate the NATURAL FREQUENCY of the oscillator ??!?!?! MArk schemes says that set the oscillator to motion and find the natural frequency ! i dont geh it !!

[d_94]

(Original post by iesians)
yup ! thanks for tht
but i wanna know how can you calculate the NATURAL FREQUENCY of the oscillator ??!?!?! MArk schemes says that set the oscillator to motion and find the natural frequency ! i dont geh it !!

Never saw that. I'll check my book and be back to yaa.

[d_94]

(Original post by iesians)
yup ! thanks for tht
but i wanna know how can you calculate the NATURAL FREQUENCY of the oscillator ??!?!?! MArk schemes says that set the oscillator to motion and find the natural frequency ! i dont geh it !!

Heyyzz. I tried looking every where for that, but it's all too detailed with a lot of mechanics. I didn't get it.
I sure it won't come, inshAllah.
Why don't you call your teacher?

[iesians]

(Original post by d_94)
heyyzz. I tried looking every where for that, but it's all too detailed with a lot of mechanics. I didn't get it.
I sure it won't come, inshallah.
Why don't you call your teacher?

i think ill go to school sometime next week, but i highly doubt that he'll know about this.

[d_94]

(Original post by iesians)
i think ill go to school sometime next week, but i highly doubt that he'll know about this.

Ahh. Okayy. Try and ask him or any other Physics teacher you know.

[bahjat93]

(Original post by d_94)
Ahh. Okayy. Try and ask him or any other Physics teacher you know.

Are you with AQA???

[bahjat93]

(Original post by handsome7654)
thankyouuu so much!!

Looking at the notes, oscilations are not tested in unit 5! Are they?

Can you please tell me what programme supports these notes? Is it power point of abdoe/pdf

[d_94]

(Original post by bahjat93)
Can you please tell me what programme supports these notes? Is it power point of abdoe/pdf

Nopee. Its WinRAR
Heres the link to download: http://download.cnet.com/WinRAR-32-b...-10007677.html

[bahjat93]

(Original post by d_94)
Nopee. Its WinRAR
Heres the link to download: http://download.cnet.com/WinRAR-32-b...-10007677.html

It's all good right? the website seems a bit iffy

[iesians]

(Original post by bahjat93)
Are you with AQA???

this thread is for EDEXCEL.