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Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 231017 times)

Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1695 on: May 26, 2010, 09:22:09 am »
Quote from: Ari Ben Canaan on May 26, 2010, 09:09:56 am
WRONG PAPER AGAIN !!! (STUPID ME)



velocity is a vector quantity .. so add 9.5 m/s to 8 m/s = 17.5 m/s

9.5-(-8) = 17.5m/s
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Offline Shazizzzle

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1696 on: May 26, 2010, 09:27:30 am »
3 hours, 30 mins to our paper 1.
And people here are already preparing for paper 3!
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Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1697 on: May 26, 2010, 09:27:59 am »
Quote from: haris94 on May 26, 2010, 09:10:35 am
the unit given in the question for pressure is Pa (N/m2)
so try changing the cm3 to m3 and see if u get it
Oh thanks.. but i did it by 100^3 * cm^3 both numbers but i got 6.4 this time.. and repeated so no chance of error .. could u try it out and list the steps please..
The answer is 6.4 * 10 =64
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Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1698 on: May 26, 2010, 09:29:01 am »
Quote from: Shazizzzle on May 26, 2010, 09:27:30 am
3 hours, 30 mins to our paper 1.
And people here are already preparing for paper 3!
Haha.. you'll get just as much time.
Don't Worry (:
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holtadit

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1699 on: May 26, 2010, 09:29:19 am »
Quote from: A@di on May 26, 2010, 09:22:09 am
velocity is a vector quantity .. so add 9.5 m/s to 8 m/s = 17.5 m/s

9.5-(-8) = 17.5m/s

Thanks A@di.  ;D
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holtadit

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1700 on: May 26, 2010, 09:30:55 am »
Quote from: 8T on May 26, 2010, 09:27:59 am
Oh thanks.. but i did it by 100^3 * cm^3 both numbers but i got 6.4 this time.. and repeated so no chance of error .. could u try it out and list the steps please..
The answer is 6.4 * 10 =64

8T  in the MS they missed out the POWER number.

You see they missed out the ^5


ITS A PRINITING ERROR !!!!


Your asnwer is correct. ;)
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Offline haris94

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1701 on: May 26, 2010, 09:32:43 am »
Quote from: Ari Ben Canaan on May 26, 2010, 09:30:55 am
8T  in the MS they missed out the POWER number.

You see they missed out the ^5


ITS A PRINITING ERROR !!!!


Your asnwer is correct. ;)

ya prolly
i also got 6.4*10^5 Pa
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Offline haris94

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1702 on: May 26, 2010, 09:34:14 am »
Quote from: 8T on May 26, 2010, 09:27:59 am
Oh thanks.. but i did it by 100^3 * cm^3 both numbers but i got 6.4 this time.. and repeated so no chance of error .. could u try it out and list the steps please..
The answer is 6.4 * 10 =64

u should get 6.4*10^5 with converting to m3 and without converting
ms must be wrong
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Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1703 on: May 26, 2010, 09:34:27 am »
Quote from: Ari Ben Canaan on May 26, 2010, 09:30:55 am
8T  in the MS they missed out the POWER number.

You see they missed out the ^5


ITS A PRINITING ERROR !!!!


Your asnwer is correct. ;)
Lol Ari , I thought so too..
But when u change to m^3 as required you would get 6.4 not 6.4 * 10 .
Now that cannot be a typing error my friend am I correct?
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Offline Girlie45

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1704 on: May 26, 2010, 09:35:23 am »
Hey guys in O/N 05 ,paper 1, question 39 why is the answer B ?  ???  
I thought B-particles only change the proton number :S
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Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1705 on: May 26, 2010, 09:36:51 am »
Quote from: Girlie45 on May 26, 2010, 09:35:23 am
Hey guys in O/N 05 ,paper 1, question 39 why is the answer B ?  ???  
I thought B-particles only change the proton number :S

a neutron spilts into a proton and an electron, the electron is emitted.

so no. of neutrons decreases by 1, and no. of protons increases by 1.
« Last Edit: May 26, 2010, 09:39:03 am by A@di »
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Offline CatAly$t

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1706 on: May 26, 2010, 09:37:19 am »
me too i was solving p3 2003 and got 6.4*10^5

what is the real answer...m confused now....ms said 64.... ??? ??? :-\
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Offline SoONa

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1707 on: May 26, 2010, 09:39:34 am »
A force acts on a moving rubber ball.
How many of the following changes could happen to the ball because of the force?
• a change in direction
• a change in shape
• a change in mass
• a change in speed
A 1 B 2 C 3 D 4

the answer is C which is 3 but i didnt understand why??
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Offline Weaam

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1708 on: May 26, 2010, 09:39:55 am »
Quote from: ~VIN1094~ on May 26, 2010, 07:07:27 am
ok i know you are off to give the exam but .. for ur knowledge

when the atmospheric pressure increases the level rises .. look for the attachment ..

Pressure at P remains the same because P is a vacuum which is nor affected by pressure ..

Im done with the exam but thanks anyway  ;)
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Offline haris94

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1709 on: May 26, 2010, 09:40:50 am »
Quote from: CatAly$t on May 26, 2010, 09:37:19 am
me too i was solving p3 2003 and got 6.4*10^5

what is the real answer...m confused now....ms said 64.... ??? ??? :-\

it has to be 6.4*10^5 Pa
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