Physics A levels Help!

[Jinosupreme]

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w03_qp_1.pdf

Q40. Anyone help please :0

 

[Chem_Kitten123]

Well the nucleus is taking an electron from its own orbital so the no of electron wud decrease by 1 nd the no of neutron wud increase by 1

 

[Jinosupreme]

Well the nucleus is taking an electron from its own orbital so the no of electron wud decrease by 1 nd the no of neutron wud increase by 1

Ok, electrons minus 1, then is it because the charge of nucleus is not balance, so 1 proton of the nucleus combine with the electrons, form a neutron, hence the number of neutron increase 1, number of proton decrease by 1?

 

[Jinosupreme]

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_s04_qp_1.pdf

Need help in question 14, 25, 26
14B
25A
26B

Thanks a lot!!!

 

[Chem_Kitten123]

Ok, electrons minus 1, then is it because the charge of nucleus is not balance, so 1 proton of the nucleus combine with the electrons, form a neutron, hence the number of neutron increase 1, number of proton decrease by 1?

Due to my assumtion proton does not take any part ...
That is y the proton no remains the same ...
AND proton does NOT form with the electron to form a neutron ...

 

[Chem_Kitten123]

Well in 14 the weight 20 N is going down nd F is on the right as on the left there is a wall so no force nd the tension on the wire that is 40 i.e hypotenuse ( dnt mind the speling if it wrong )

 

[Chem_Kitten123]

Spelling if its wrong *

 

[Chem_Kitten123]

For 26 m using the ratio method i.e if A = E so 2A wud obviously be 2E ...
It cnt be less or equal to E as the surface area was decreased nd as it decreases the energy increases

 

[Chem_Kitten123]

For 25 ..
In a transverse wave , the movement of the wave is always the opposite to the direction of motion ...
As P is going upwards its arrow wud be downwards ...
Q wud come down nd wud have a 0 displacement
U can confirm it with others if u doubt me ...

 

[Chem_Kitten123]

Combine * sorry not form

 

[Jinosupreme]

thanks a lot!!

 

[Chem_Kitten123]

thanks a lot!!

Anytime ...
Why So Surprised ... ?

 

[>>>Javeria<<<]

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w03_qp_1.pdf

Q40. Anyone help please :0

K-capture is the opposite of beta-decay