Physics p22

[BILALrox01]

The guy doesn't know what he's talking about than why's he acting like this phannai khan caling me a rote learner.

 

[hassam]

ya that guy is really a big asshole....LOOK ahsan said...D=M/V....SO V REDUCED WE shud increase M to make D constant...ahsan r u sure....lokk again wat u wrote....

 

[ahsan99]

The guy doesn't know what he's talking about than why's he acting like this phannai khan caling me a rote learner.

Ok i have a paper tommorow and i wrote it instantly and knew got it wrong
The other of my reasoning of surface area is perfectly correct
and dont you even know that an object of lower mass experiences greater
resistance...u said the acceleration will be higher..haa.tu i recommend taking Olevel
physics again..
thank u

 

[sadman]

@alibutt
hey I did the same thing
but think it simply you add all the resistance in series right???
so all the resistance would be added
At the same time current was passing through negative end to positive end in the 3V battery (raise up)
so it would be
(12 - I0.02) - (3+I 0.01) = I 3.3
and your I come 2.5 sadly i think this is the correct answer!

 

[BILALrox01]

Did u even read the formula.. Don't try to insert ur MISCONCEPTS where you don't have too.. F=6piRV.. No 6 Pi are constants.. initial acceleration is constant so INITIALLY the velocity will be constant for both too.. SO all depends on r doesn't .. No plz don't tell me that according to this formula When r increases F decreases.. Nd mashallah sai 98 a gae thei ek dafa denai sai dubara zarurat nai hai.

 

[BILALrox01]

Now I don't want to fight so a simple way would be not to discuss the paper.

 

[BILALrox01]

Lets discuss the electricity question.. Does nyone remember the question parts??

 

[hassam]

read this.....terminal velocity GUYX
http://www.shorstmeyer.com/wxfaqs/float/rdtable.html

 

[thunderingthunder]

Lets discuss the electricity question.. Does nyone remember the question parts??

only the definations....emf and the internal resistance...and yes calculating the power!

 

[grumpy]

i did it with lower terminal velocity and quick time.

it has to be like this look guys ill explain it to you all.
density is constant ok,
now the volume is decreased now if you multiply v with d you get a smaller mass.
now although surface area is decreased but decrease is very small so we just neglect it.
or otherwise mass is decreased by r^3 and area reduced to r^2. so lesser mass terminal velocity reached quickly.

 

[BILALrox01]

Lets discuss the electricity question.. Does nyone remember the question parts??

only the definations....emf and the internal resistance...and yes calculating the power!

What was it??

 

[thunderingthunder]

i calculated it 720 W!

 

[grumpy]

yar please if anyone has object to my answer tell me.
it was 30w i think.

 

[BILALrox01]

I agree k it reaches terminal velocity more quickly. I'm not sure 40 tha ya 30.

 

[robotic94]

oh shit
guys!
i missed drawing the graph ques in p22 (raindrop one)
can i know how much marks was it for!

 

[hassam]

2 only

 

[yubakkk]

guys...wat was ur a..was it 4.9.....?????

but negative

 

[sparten]

guys...wat was ur a..was it 4.9.....?????

but negative

yes

 

[Mobeen]

the raindrop graph question .. the curve we had to draw was above the original curve right ?? because it was lighter in mass so weight would be overcome by air resistance quickly .. right ?

 

[sakibfaiyaz]

Ok guys, please tell me if the last question had asked for "phase difference" or "path difference"
I thought I read path difference and wrote lambda and 0.5 lambda