Pressures at the water levels in the two open tanks?

[PLAIN] [Broken]

Please let me know is my assumption correct?

P1 = P2 = P4 = P5 = Atmospheric pressure

P2 not equal to P3, and P3 is not under the atmospheric pressure.

P2 not equal to P3 even are the same fluid, is because of the same fluids are not connected. Am i right to say that?

# How do i convert -30mm Hg(mercury) to pressure?
Last edited by a moderator:


Homework Helper
# How do i convert -30mm Hg(mercury) to pressure?

Pressure P = ρ*g*h, where ρ is the density of the mercury.

The Physics Forums Way

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving