Physics: Post your doubts here!

[asma tareen]

summer 2013 practicals 33
readings only
https://www.dropbox.com/s/sokx40nb7zdzuc8/S13-33.pdf

Shukriya

 

[Thought blocker]

summer 2013 practicals 33
readings only
https://www.dropbox.com/s/sokx40nb7zdzuc8/S13-33.pdf

Aye haye! Thanks dude!

 

[agha saad 22]

summer 2013 practicals 33
readings only
https://www.dropbox.com/s/sokx40nb7zdzuc8/S13-33.pdf

CLAPS FOR XPC TEACHER

 

[Thought blocker]

summer 2013 practicals 33
readings only
https://www.dropbox.com/s/sokx40nb7zdzuc8/S13-33.pdf

POINTER !

 

[usama321]

naee i mean kin formulas say derive kiya hai?? like KAI VALUES KO DEKH KAI KHUD m/s nikala hai!!?

It's kg/s. And khud try ker k nikala hai Though search it online, zarur hoga.. Kg/m^3 *m/s = kg/m^2 s.This means, one kg per second per m^2 of area. Just multiply with the number of m^2 (area) you have and you get kg/s on that specified area.

 

[Suchal Riaz]

the sixth reading of question one is wrong maybe.

 

[agha saad 22]

It's kg/s. And khud try ker k nikala hai Though search it online, zarur hoga.. Kg/m^3 *m/s = kg/m^2 s.This means, one kg per second per m^2 of area. Just multiply with the number of m^2 (area) you have and you get kg/s on that specified area.

(Y) nice try!! is ka matlab!! kuch samaj na ayee values ko multiply kar do.. just kidning!!! Weldone (Y)

 

[Suchal Riaz]

POINTER !

some of it is pencil

 

[agha saad 22]

It's kg/s. And khud try ker k nikala hai Though search it online, zarur hoga.. Kg/m^3 *m/s = kg/m^2 s.This means, one kg per second per m^2 of area. Just multiply with the number of m^2 (area) you have and you get kg/s on that specified area.

btw aaisa question like har baar ata hai

 

[♣♠ Magnanimous ♣♠]

thanks man.

summer 2013 practicals 33
readings only
https://www.dropbox.com/s/sokx40nb7zdzuc8/S13-33.pdf

 

[Thought blocker]

some of it is pencil

I'll wait for my doubts to be solved, MATH! p1 Do it ASAP

 

[Suchal Riaz]

i made a mistake in calculating 1/l in 5th and 6th reading. sorry i should have checked first

 

[Suchal Riaz]

I'll wait for my doubts to be solved, MATH! p1 Do it ASAP

which paper it is?

 

[Thought blocker]

i made a mistake in calculating 1/l in 5th and 6th reading. sorry i should have checked first

np Suchal!

 

[usama321]

btw aaisa question like har baar ata hai

yup, it's a common formula, though i didn't know about it when i first tried the question

 

[Thought blocker]

which paper it is?

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s10_qp_12.pdf

 

[sitooon]

Can someone Help with Graph : question 9b(ii)

 

[Suchal Riaz]

Sorry another mistake. Eveything had to be in one decimal place. I don't know what was i thinking when i was in lab.

 

[meerul264]

Help me with my superposition doubt please.

What changes is observed when the following is increased?
1. slit separation, a
2. slit width, w
3. angle of diffracted light from zero order, t
4. wavelength, l
5. perpendicular distance between the slit and screen, D

thanks

 

[amal sharkawi]

A wind turbine has blades that sweep an area of 2000 m
2. It converts the power available in the

wind to electrical power with an efficiency of 50%.
What is the electrical power generated if the wind speed is 10 m s
–1? (The density of air is

1.3 kg m
–3.)

A
130 kW B 650 kW C 1300 kW D 2600 kW
can anyone explain this question