Physics: Post your doubts here!

[The Sarcastic Retard]

b(i)(ii) Not getting any idea. Anyone can help me to detailed solution?
(i) How Accn of free fall = length times angular velocity squared? I have never learnt this.
(ii) No idea.

Thanks.

 

[The Sarcastic Retard]

T

go to
http://physics-ref.blogspot.com/2014/09/9702-november-2007-paper-4-worked.html

Thanks.

 

[maddy_em]

Can anyone please help me with Question 3 subsection (c)?

 

[aabiskar basyal]

can anyone plz post the link or upload the free physics and chemistry coursebook of as and a levels .....

 

[ashcull14]

 

[nehaoscar]

Both inverting and non-inverting amplifiers work on negative feedback where part of the output is fed back to the inverting terminal.
Does that mean in both type of amplifiers, the gain is reduced?

 

[zahra azam]

Guys help me with this qs

In 2002, the canary wharf tower in london was scaled by french urban climber,Alain robert.
The top of the tower is 235 m above street level, if he dropped an apple as he reached the top of the tower:
assuming that he could shout loudly enough, would it be any use if Robert had shouted to warn people below? (Speed of sound 340ms^-1)

 

[Mr.Physics]

zahra azam

 

[zahra azam]

zahra azam

Which eq is that for part b?

 

[Mr.Physics]

Which eq is that for part b?

Time=distance/speed
Time is t, distance is s, and speed is v.

 

[zahra azam]

Time=distance/speed
Time is t, distance is s, and speed is v.

What ???? wow
That is soo easy
I was going soo deep i forgot the basics xD
Thanks

 

[Mr.Physics]

What ???? wow
That is soo easy
I was going soo deep i forgot the basics xD
Thanks

Np

 

[Mr.Physics]

can anyone plz post the link or upload the free physics and chemistry coursebook of as and a levels .....

Hey check this out
http://www.gceguide.com/e-books/

 

[Mr.Physics]

https://googledrive.com/host/0B1ZiqBksUHNYc0tWVkExdEc4Nlk/January 2014 (IAL) QP - Unit 1 Edexcel Physics.pdf
Question 18 (a) (ii)
Help plz I can't figure it out
zahra azam My Name

 

[princess Anu]

can someone please show me the solution for this.

 

[princess Anu]

How to do this. HELP!!!!!!

Q: A conical pendulum consists of a small massive bob hung from a light string of length 1m and rotating in a horizontal circle of radius 30cm. Deduce the speed for rotation in revolutiona per minute.

 

[Copy Cat]

Last part?

 

[Copy Cat]

Last Part

 

[nehaoscar]

Both inverting and non-inverting amplifiers work on negative feedback where part of the output is fed back to the inverting terminal.
Does that mean in both type of amplifiers, the gain is reduced?

 

[Usama waheed3]

Aslam w.a.a hello there, can anybody help me i want to ask that i got in physics C grade in AS level exam and i calculated my marks and compared with grade threshold and so i according to that am getting B grade so what should i do now to improve my grade any help