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Author Topic: Physics Help HERE ONLY !!  (Read 81675 times)

Offline QuickSilver

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Re: Physics Help HERE ONLY !!
« Reply #735 on: June 09, 2009, 06:12:17 am »
Quote from: annie_angel on June 09, 2009, 06:10:34 am
wats da usual grade threshold for A in physics paper 1??
34 to 37 /40
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Offline annie_angel

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Re: Physics Help HERE ONLY !!
« Reply #736 on: June 09, 2009, 06:16:05 am »
oh!Thanks!!
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Offline IGSTUDENT

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Re: Physics Help HERE ONLY !!
« Reply #737 on: June 09, 2009, 06:53:10 am »
Quote from: nid404 on June 09, 2009, 06:08:39 am
the bar is inside the solenoid..it was moved into the solenoid,causing the field line to be cut. the rest r not correct anyways. For A the magnet is a part of the whole connection(absolutely wrong) for C the magnet is outside the solenoid and being rotated(if it were inside then a pd would be induced as rotating outside does not cut the field line and for D the magnet is being taken away from the solenoid it needs to be taken into it so that field lines can be cut
Thanks!!!!
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Offline examsaresoon

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Re: Physics Help HERE ONLY !!
« Reply #738 on: June 09, 2009, 08:20:56 am »
Can some one please help me out? In Oct/Nov 2007...there are a two questions i don't understand. Question 7 and 21. Help would be appreciate it!
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Offline QuickSilver

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Re: Physics Help HERE ONLY !!
« Reply #739 on: June 09, 2009, 09:06:08 am »
Quote from: examsaresoon on June 09, 2009, 08:20:56 am
Can some one please help me out? In Oct/Nov 2007...there are a two questions i don't understand. Question 7 and 21. Help would be appreciate it!


Question 7.

The mass of the drum is 200 WHEN EMPTY, when full of the spirit, it is 1000kg, so this means that the mass of the spirit is....800kg's
And since density=Mass/Volume, so, Density=800kg/1cm3 which is equal to 800Kg/Cm3
Answer: C


Question 21.

The line should represent the amplitude, because the aomplitude is the line that is in the middle and ANY WAVE THAT RESTS WILL BE ALINE WITH THE AMPLITUDE, Answer:B



Hope I Helped, Dont Forget +REP ;)

Best Wishes
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Offline examsaresoon

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Re: Physics Help HERE ONLY !!
« Reply #740 on: June 09, 2009, 09:10:53 am »
Thanks! + rep !!
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Offline QuickSilver

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Re: Physics Help HERE ONLY !!
« Reply #741 on: June 09, 2009, 09:12:11 am »
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Offline 247sports

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Re: Physics Help HERE ONLY !!
« Reply #742 on: June 09, 2009, 10:38:37 am »
i hav a question
usually in phy ppr 1 they giv u pics n ask u which 1 has the gr8tst thermal capacity
how do we koe which one is the answer ???
any help is appreciatd
Thanks
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Offline sweetsh

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Re: Physics Help HERE ONLY !!
« Reply #743 on: June 09, 2009, 10:40:46 am »
Can you give  a specific question so we can all help ? Or learn ? =)
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Offline 247sports

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Re: Physics Help HERE ONLY !!
« Reply #744 on: June 09, 2009, 10:42:18 am »
k like in may/june 2006 ques 16n ques no 8
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Offline sweetsh

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Re: Physics Help HERE ONLY !!
« Reply #745 on: June 09, 2009, 10:49:53 am »
Sure..
q16..I think it's A because it has the least temprature rise..As they didnt mention anything about masses..
for q8 I think it's A only one model will fall over
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Offline 247sports

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Re: Physics Help HERE ONLY !!
« Reply #746 on: June 09, 2009, 11:01:34 am »
k basically for a high thermal capacity the temperature rise shud b the lowest k dint koe dat Thanks
 ;D
+rep 4 u
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Offline sweetsh

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Re: Physics Help HERE ONLY !!
« Reply #747 on: June 09, 2009, 11:03:41 am »
Neither do I, I will ask astar to explain it to us when he comes back..But I just checked the ms and they are correct.
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Offline Hope

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Re: Physics Help HERE ONLY !!
« Reply #748 on: June 09, 2009, 11:08:11 am »
May anyone please clarify what the term wavefront is? :)
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Offline sweetsh

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Re: Physics Help HERE ONLY !!
« Reply #749 on: June 09, 2009, 11:10:28 am »
Wave front: line that joins all crests on the wave together
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