Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
Weaam:
Nevermind my question, off to do the exam, wish me luck!
Vin:
--- Quote from: weaam on May 26, 2010, 05:17:48 am ---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
--- End quote ---
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 ..
red_911:
why is question 21 0625/01/M/J/06 B ? ??? ??? :-X
Ghost Of Highbury:
--- Quote from: red_911 on May 26, 2010, 08:08:46 am ---why is question 21 0625/01/M/J/06 B ? ??? ??? :-X
--- End quote ---
Speed = Frequency * Wavelength
Speed decreases, frequency is constant, thus, wavelength decreases (distance between the lines)
it doesnt refract, water waves...travels straight..
WARRIOR:
--- Quote from: A@di on May 26, 2010, 08:11:50 am ---Speed = Frequency * Wavelength
Speed decreases, frequency is constant, thus, wavelength decreases (distance between the lines)
it doesnt refract, water waves...travels straight..
--- End quote ---
yestterday you told me
H= I^2 X R
what is the constant? here?
and does this forumula work for wires ..like decrease the resistance decrease heat loss?
work for transformers ..like increasign voltage decreases heat loss?
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