Physics: Post your doubts here!

[joshxc]

if anyone has the Feb/March 2021 papers for physics please send them to me!! it would be greatly appreciated

GCSE or a leve

 

[Sooche]

http://issuu.com/cupeducation/docs/...and_a_le_a6c5aee47d8cf4/115?e=4655315/8019938
you can actually read the book an see if you like it

Anyone with a complete version of this book? Cambridge International AS and A level physics Course book, 2nd Ed. By David Sang, Graham Jones, Richard Woodside
Please help. Thanks in advance
My email: [email protected]

 

[Abdallah Divker]

Hello everyone,

I am looking for a PDF version of the following book:

Book Name:- Cambridge International AS & A Level Physics Digital Teacher's Resource
ISBN:-9781108796743

 

[ibrahimshoaib]

Does anyone have akhtar mahmood notes physics

 

[Nibbah]

Assalam o Alaikum every one, Is there any way to prepare for Alevels physics exam in just 3 or 4 days???
Please help

 

[Mojobojo77]

Help with part (ii) would be greatly appreciated!

 

[amnah_hh]

Hello everyone,

I am looking for a PDF version of the following book:

Book Name:- Cambridge International AS & A Level Physics Digital Teacher's Resource
ISBN:-9781108796743

did u find it yet?

 

[KKxinn]

Hello, anyone can solve this question? About potential divider

 

[IMRAN ASHRAF MALIK]

For Q37 (Attachement 1)
Ans: Option A

For QQ35 (Attachement 2)
Ans: Option C

 

[THAT KID]

Textbook for physics 9702




The attachment doesn't want to upload properly so I have provided a free a and a premium file host:
When link dies I try again. Feel free to email me at [email protected] for Fresh links or mirrors.
I personally prefer Rapidgator or 1fichier but I know many don't have a Premium leech like alldebrid or real debrid.
Also Since the material is copyrighted its best that its not hosted by the site.

Free File Host dropapk (Click slow download, Copy in the number ,Click download , Profit!)
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Debrid(Premium file host for those who have a debrid)
https://rapidgator.net/file/39b23da0bb48453c1eed68d3dd6e41e0/

Best of Luck With Your A levels

 

[116272881]

How is this Answer 3x?

 

[Funteck123]

How is this Answer 3x?

View attachment 66940

Hooke's law is F=k*x.
And in parallel we add the spring constant of springs.
So, initially: F=3k*x
Then, one spring removed and force doubled: 2F=2k*3x. Must simplify to F=3k*x, as it does.

Another way to look at it is:
Hooke's Law is f=k*x
By changes, new K is made 2/3 times original k
New F is made 2 times original f
As x is directly proportional to f and inversely proportional to k,
new X is 3/2 times * 2 times original x. So, 3 times original x.

I hope this helps.

 

[maryamkhwaja6]

please help with part (ii)

 

[umerx_xwazdorf]

helpaaa

its A. Since pipe open at both ends 1st Harmonic occurs where 0.5lamda=L. 2nd Harmonic occurs where lamda=Length. Likewise 3rd Harmonic occurs where 1.5lamda=Length and finally the fourth Harmonic where 2lamda=Length. This gives u 50 cm so A

 

[umerx_xwazdorf]

View attachment 64128 help ANS is B

W acts ats at centre of radius which is 0.20m. Now to lift Weight, you would need upward force. To provide that upward force, you would need torque o a couple as there are two forces acting in opposite directions but you only require one of them to act in direction opposing the Weight (ACWM).

 

[umerx_xwazdorf]

Is the answer B? View attachment 64138

Hi can u explain me how u got the answer as B

 

[umerx_xwazdorf]

Thank youuu,i suck at physics lol

what about 17 tho