Qualification > Sciences
Physics ppr 1 Discussion Here only!
halosh92:
the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
robot_avenger:
--- Quote from: halosh92 on June 11, 2009, 07:31:08 am ---the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
--- End quote ---
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
halosh92:
--- Quote from: robot_avenger on June 11, 2009, 07:37:30 am ---
--- Quote from: halosh92 on June 11, 2009, 07:31:08 am ---the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
--- End quote ---
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
--- End quote ---
:D :D thxxx...wat did u do for the echo the guy standing on the cliff??
zmnigcse:
Yes, the reading is at the same height. (:
The paper was really tricky man :-[
And erm, are both the circuit breaker and the fuse in the live wire?
And what was the answer to that fire question? :-\
Diablo:
--- Quote from: robot_avenger on June 11, 2009, 07:37:30 am ---
--- Quote from: halosh92 on June 11, 2009, 07:31:08 am ---the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
--- End quote ---
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
--- End quote ---
100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
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