Qualification > Sciences

ALL CIE PHYSICS DOUBTS HERE !!!

<< < (4/215) > >>

ashish:
i like to help friends  ;D

Ghost Of Highbury:
Can u explain the steps too please? Thank you

Deadly_king:

--- Quote from: Ghost Of Highbury~ on October 10, 2010, 10:53:08 am ---Can u explain the steps too please? Thank you

--- End quote ---
20.

You should first know that points at the same level/height experience same pressure and that pressure due to a liquid is heg.

Back to the diagram, let's take it at the level x from below.

Since in both limbs, points at same level experience same pressure :
Patm + xeqg = Patm + 2xepg

Therefore simplify this equation to obtain ;
ep/eq = 1/2

Answer is A

12.
Since the forces are in equilibrium, the resultant force should be zero. For this, the forces should make a complete cycle back to the same original point.

Only triangles R and S show this possiblity. Hence answer is C

Hope it helps :)

Ghost Of Highbury:

--- Quote from: Deadly_king on October 10, 2010, 11:07:53 am ---20.

You should first know that points at the same level/height experience same pressure and that pressure due to a liquid is heg.

Back to the diagram, let's take it at the level x from below.

Since in both limbs, points at same level experience same pressure :
Patm + xeqg = Patm + 2xepg

Therefore simplify this equation to obtain ;
ep/eq = 1/2

Answer is A

12.
Since the forces are in equilibrium, the resultant force should be zero. For this, the forces should make a complete cycle back to the same original point.

Only triangles R and S show this possiblity. Hence answer is C

Hope it helps :)

--- End quote ---

Thank you. +rep

Deadly_king:

--- Quote from: Ghost Of Highbury~ on October 10, 2010, 12:01:31 pm ---Thank you. +rep

--- End quote ---
Anytime dude :)

Navigation

[0] Message Index

[#] Next page

[*] Previous page