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Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 229017 times)

Offline Adzel

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1095 on: May 25, 2010, 10:26:26 am »
See attached...+ explaination of answer.
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Offline jellybeans

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1096 on: May 25, 2010, 10:28:30 am »
Quote from: Adzel on May 25, 2010, 10:26:26 am
See attached...+ explaination of answer.

answer's B cuz it takes 2 days to reach HALF of 200, which is 100. and monday-weds is two days :)
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Offline Adzel

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1097 on: May 25, 2010, 10:39:39 am »
Quote from: jellybeans on May 25, 2010, 10:28:30 am
answer's B cuz it takes 2 days to reach HALF of 200, which is 100. and monday-weds is two days :)

Ohh...didn't relize that....thanks!
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Offline jellybeans

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1098 on: May 25, 2010, 10:55:25 am »
Quote from: Adzel on May 25, 2010, 10:39:39 am
Ohh...didn't relize that....thanks!

no probs :)
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Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1099 on: May 25, 2010, 11:20:27 am »
Hello.
Can some1 plz give me the answer of october 02  p1 q 37 & explain if possible?
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Offline Moonlyte

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1100 on: May 25, 2010, 11:36:01 am »
Quote from: 8T on May 25, 2010, 11:20:27 am
Hello.
Can some1 plz give me the answer of october 02  p1 q 37 & explain if possible?

The ans is C - it increases a little.
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Offline Moonlyte

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1101 on: May 25, 2010, 11:37:47 am »
Could someone please help me with Nov 2009 number 17? The answer is A, but i dont know why.

Here's the link for the paper:
http://www.freeexampapers.com/FreeExamPapers.com_.php?__lo=SUdDU0UvUGh5c2ljcy9DSUUvMjAwOSBOb3YvMDYyNV93MDlfcXBfMS5wZGY=
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Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1102 on: May 25, 2010, 11:44:58 am »
Quote from: Moonlyte on May 25, 2010, 11:37:47 am
Could someone please help me with Nov 2009 number 17? The answer is A, but i dont know why.

Here's the link for the paper:
http://www.freeexampapers.com/FreeExamPapers.com_.php?__lo=SUdDU0UvUGh5c2ljcy9DSUUvMjAwOSBOb3YvMDYyNV93MDlfcXBfMS5wZGY=

if u cool the water at X, the cool water will move down, hence pushing the warmer water below upwards. a convection current is set up
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Offline Adzel

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1103 on: May 25, 2010, 11:45:55 am »
Quote from: Moonlyte on May 25, 2010, 11:37:47 am
Could someone please help me with Nov 2009 number 17? The answer is A, but i dont know why.

Here's the link for the paper:
http://www.freeexampapers.com/FreeExamPapers.com_.php?__lo=SUdDU0UvUGh5c2ljcy9DSUUvMjAwOSBOb3YvMDYyNV93MDlfcXBfMS5wZGY=

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Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1104 on: May 25, 2010, 11:48:17 am »
Moonlyte or anyone else could you explain ,I dnt quite get it ?
And abt ur question what if we stir at Y what will happen then cz thts what i picked in o/n 09 q 17
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Offline Adzel

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1105 on: May 25, 2010, 12:04:55 pm »
Explain please... :-\
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Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1106 on: May 25, 2010, 12:08:32 pm »
Is the answer B,Adzel  because i can explain then??
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Offline Adzel

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1107 on: May 25, 2010, 12:10:39 pm »
Yes...
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Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1108 on: May 25, 2010, 12:13:16 pm »
Isnt the half (1.3 - 0.9 = 0.4)
THen full 2 * 0.4 = 0.8
So 1.3- 0.8 = 0.5  which is B
Hope u got it :)
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1109 on: May 25, 2010, 12:15:15 pm »
Quote from: Adzel on May 25, 2010, 12:10:39 pm
Yes...

ok so the second one shows the bottle wen half used .. so this is mass of oil + the bottle so if u double it to 1.8 Kg .. this will be mass of original (wen full) + bottle .. so to find the weight of the bottle
1.8 - 1.3 = 0.5Kg
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