Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
Weaam:
--- Quote from: jellybeans on May 26, 2010, 02:24:39 am ---HIIII!! :D :D
some explanation neeeeded please thankyouuuu!
;D
--- End quote ---
I can helpp yoou!
For the first one Q21, the answer is B, its not A cuz the water can never reach that high after it settles, there are too many big spaces between the wave and the next.
Its not C, cuz when the water settles, itll be highher cuz of the peaks of the waves.
For Q36, just imagine a generator in your head, which parts are always brushing against each other? Its defentily not the coil and brushes, or the coil and the magnet, or even the magnet and the slip ring because they dont even touch! it has to be D, slip ring and brushes.
jellybeans:
--- Quote from: weaam on May 26, 2010, 04:27:40 am ---I can helpp yoou!
For the first one Q21, the answer is B, its not A cuz the water can never reach that high after it settles, there are too many big spaces between the wave and the next.
Its not C, cuz when the water settles, itll be highher cuz of the peaks of the waves.
For Q36, just imagine a generator in your head, which parts are always brushing against each other? Its defentily not the coil and brushes, or the coil and the magnet, or even the magnet and the slip ring because they dont even touch! it has to be D, slip ring and brushes.
--- End quote ---
hahaha ohhh thanks! ;D got the 2nd bit. but not the first bit :P hahahaha... how dyu know that it'll be higher? and... uhm where the peaks wud be?
THANKS agaiiin :D
Weaam:
--- Quote from: jellybeans on May 26, 2010, 04:54:08 am ---hahaha ohhh thanks! ;D got the 2nd bit. but not the first bit :P hahahaha... how dyu know that it'll be higher? and... uhm where the peaks wud be?
THANKS agaiiin :D
--- End quote ---
umm... ill put it in another way, when there are waves passing, there are higher bits and lower bits, so its not C because when the water settles, the higher bits will settle too, so making the water level rise a little, get it now?
Ur welcooome! :D
holtadit:
--- Quote from: jellybeans on May 26, 2010, 04:54:08 am ---hahaha ohhh thanks! ;D got the 2nd bit. but not the first bit :P hahahaha... how dyu know that it'll be higher? and... uhm where the peaks wud be?
THANKS agaiiin :D
--- End quote ---
This is an application of the amplitude of a transverse wave. The amplitude is the max displacement from a mean position.
Weaam:
Im having trouble understanding Q13 in O/N 07, could you plz explain, i dunt get why the lvl rises but the pressure stays the same
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