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Author Topic: Physics Discussion HERE ONLY!  (Read 33142 times)

Offline MR.BooMBastiC

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Re: Physics Discussion HERE ONLY!
« Reply #90 on: June 05, 2009, 02:06:46 pm »
Quote from: insanity-stricken on June 05, 2009, 02:00:57 pm
Quote from: MR.BooMBastiC on June 05, 2009, 01:58:48 pm
AND THE CORRECT FRACTION IS::1/8

WAT DID U GUZS WROTE 4 THE 1 ST QUESTION
i wrote vernier calipers...although i know of a micrometer..dont really know how it works..but i do calipers..so wrote tht..i messed up in the milk and water part..thts the only q im sure busted in, rest was good enough

IF U KNOW how to use calipers than i guarantee u its 110% correct!!!!!!
i knew da word micrometer and this one but i didnt know how to use it!

i am sure u dont live in ksa!!!!
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Offline Kim

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Re: Physics Discussion HERE ONLY!
« Reply #91 on: June 05, 2009, 02:07:10 pm »
Quote from: IGCSE nightmare on June 05, 2009, 02:01:24 pm
I got the fraction 1\2 too!
Because it has a slower speed which means a heavier mass, right?
u dont know how glad i am to know i isnt the only one who got half!!!!!!!!!!wohoo
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After all is said and done, more is said than done.

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Re: Physics Discussion HERE ONLY!
« Reply #92 on: June 05, 2009, 02:07:37 pm »
Quote from: IGCSE nightmare on June 05, 2009, 02:01:24 pm
I got the fraction 1\2 too!
Because it has a slower speed which means a heavier mass, right?

half the speed means half volume of air comes to the turbine, thus, half the original mass..isnt it?
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Re: Physics Discussion HERE ONLY!
« Reply #93 on: June 05, 2009, 02:08:12 pm »
Quote from: MR.BooMBastiC on June 05, 2009, 02:06:46 pm
Quote from: insanity-stricken on June 05, 2009, 02:00:57 pm
Quote from: MR.BooMBastiC on June 05, 2009, 01:58:48 pm
AND THE CORRECT FRACTION IS::1/8

WAT DID U GUZS WROTE 4 THE 1 ST QUESTION
i wrote vernier calipers...although i know of a micrometer..dont really know how it works..but i do calipers..so wrote tht..i messed up in the milk and water part..thts the only q im sure busted in, rest was good enough

IF U KNOW how to use calipers than i guarantee u its 110% correct!!!!!!
i knew da word micrometer and this one but i didnt know how to use it!

i am sure u dont live in ksa!!!!

i do live in ksa..why? :P
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Offline MR.BooMBastiC

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Re: Physics Discussion HERE ONLY!
« Reply #94 on: June 05, 2009, 02:09:24 pm »
Quote from: notty_me on June 05, 2009, 02:05:28 pm
i used mgh=0.5mv2 to find da mass

and i just wanna no hw u people found ur values of mass?????????


ur idea maybe correct!!!1

but since it was a 1 mark question!!!!

i halved the mass
as the da speed was halved
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Offline Kim

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Re: Physics Discussion HERE ONLY!
« Reply #95 on: June 05, 2009, 02:11:26 pm »
Quote from: MR.BooMBastiC on June 05, 2009, 02:09:24 pm
Quote from: notty_me on June 05, 2009, 02:05:28 pm
i used mgh=0.5mv2 to find da mass

and i just wanna no hw u people found ur values of mass?????????


ur idea maybe correct!!!1

but since it was a 1 mark question!!!!

i halved the mass
as the da speed was halved
i did the same thing!
how much can u do for 1 mark anyways?
oh well lets stay positive and the grade threshold WILL be LOW and we all will get A and A*
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After all is said and done, more is said than done.

By the time a man realizes that maybe his father was right, he usually has a son who thinks he’s wrong.

The early bird may get the worm, but the second mouse gets the cheese.

Offline MR.BooMBastiC

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Re: Physics Discussion HERE ONLY!
« Reply #96 on: June 05, 2009, 02:12:52 pm »
cuz our teachers didnt took us to the lab since 2 years
we didnt see even a burette or any tiny instrument!!!

so how r we suppose to know!!how micrometer works!!!!





and that ke question was simple math u had to take the fraction of the old one to the new one and without unit ;) ;) ;) ;) ;) ;)
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Offline IGCSE nightmare

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Re: Physics Discussion HERE ONLY!
« Reply #97 on: June 05, 2009, 02:13:53 pm »
Quote from: insanity-stricken on June 05, 2009, 02:07:37 pm
Quote from: IGCSE nightmare on June 05, 2009, 02:01:24 pm
I got the fraction 1\2 too!
Because it has a slower speed which means a heavier mass, right?

half the speed means half volume of air comes to the turbine, thus, half the original mass..isnt it?


I am not actually convinced, it is a slow wind so it will turn the turbines slowly which will generate less electricity thus less power output
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Re: Physics Discussion HERE ONLY!
« Reply #98 on: June 05, 2009, 02:15:41 pm »
Quote from: IGCSE nightmare on June 05, 2009, 02:13:53 pm
Quote from: insanity-stricken on June 05, 2009, 02:07:37 pm
Quote from: IGCSE nightmare on June 05, 2009, 02:01:24 pm
I got the fraction 1\2 too!
Because it has a slower speed which means a heavier mass, right?

half the speed means half volume of air comes to the turbine, thus, half the original mass..isnt it?


I am not actually convinced, it is a slow wind so it will turn the turbines slowly which will generate less electricity thus less power output
thats exactly how it was, less speed, less mass...so 0.5mv2 would have a smaller m, and a smaller v, thus less output..
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Offline Kim

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Re: Physics Discussion HERE ONLY!
« Reply #99 on: June 05, 2009, 02:16:31 pm »
Quote from: IGCSE nightmare on June 05, 2009, 02:13:53 pm
Quote from: insanity-stricken on June 05, 2009, 02:07:37 pm
Quote from: IGCSE nightmare on June 05, 2009, 02:01:24 pm
I got the fraction 1\2 too!
Because it has a slower speed which means a heavier mass, right?

half the speed means half volume of air comes to the turbine, thus, half the original mass..isnt it?


I am not actually convinced, it is a slow wind so it will turn the turbines slowly which will generate less electricity thus less power output
wat i did was first using the mass of the second air i found its kinetic energy then using that value i found the power output after which i found the fraction.
do u think this was right?
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After all is said and done, more is said than done.

By the time a man realizes that maybe his father was right, he usually has a son who thinks he’s wrong.

The early bird may get the worm, but the second mouse gets the cheese.

Offline MR.BooMBastiC

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Re: Physics Discussion HERE ONLY!
« Reply #100 on: June 05, 2009, 02:17:10 pm »
what did u write abt the fraction

why was the diameter given
i think just to confuse us!!! >:( >:( :o :o :P :P :P :P :P
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Offline Kim

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Re: Physics Discussion HERE ONLY!
« Reply #101 on: June 05, 2009, 02:18:05 pm »
Quote from: MR.BooMBastiC on June 05, 2009, 02:17:10 pm
what did u write abt the fraction

why was the diameter given
i think just to confuse us!!! >:( >:( :o :o :P :P :P :P :P
their was diameter?!i never saw it!!!!!!!!!!!!!!!!!!!!!!
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After all is said and done, more is said than done.

By the time a man realizes that maybe his father was right, he usually has a son who thinks he’s wrong.

The early bird may get the worm, but the second mouse gets the cheese.

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Re: Physics Discussion HERE ONLY!
« Reply #102 on: June 05, 2009, 02:19:09 pm »
Quote from: kim on June 05, 2009, 02:18:05 pm
Quote from: MR.BooMBastiC on June 05, 2009, 02:17:10 pm
what did u write abt the fraction

why was the diameter given
i think just to confuse us!!! >:( >:( :o :o :P :P :P :P :P
their was diameter?!i never saw it!!!!!!!!!!!!!!!!!!!!!!

diameterrr??? WHICH ONEEE?!?!
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Offline Kim

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Re: Physics Discussion HERE ONLY!
« Reply #103 on: June 05, 2009, 02:20:12 pm »
Quote from: insanity-stricken on June 05, 2009, 02:19:09 pm
Quote from: kim on June 05, 2009, 02:18:05 pm
Quote from: MR.BooMBastiC on June 05, 2009, 02:17:10 pm
what did u write abt the fraction

why was the diameter given
i think just to confuse us!!! >:( >:( :o :o :P :P :P :P :P
their was diameter?!i never saw it!!!!!!!!!!!!!!!!!!!!!!

diameterrr??? WHICH ONEEE?!?!
hey BOOMBASTIC wat r u talkin about?
I NEVER SAW A DIAMETER
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After all is said and done, more is said than done.

By the time a man realizes that maybe his father was right, he usually has a son who thinks he’s wrong.

The early bird may get the worm, but the second mouse gets the cheese.

Offline MR.BooMBastiC

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Re: Physics Discussion HERE ONLY!
« Reply #104 on: June 05, 2009, 02:21:55 pm »
diameter for the ke question 25m...

when ever i see ur username i always by mistake say insanity-CHICKEN!!!!
LOL LOL  LOL LOL  :P :P :P :P :P :P :P :P
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