Water Supply from a Tank


Diagram above shows a process of water supply from a tank on top of a hill to tank X on a tall building.
Rajah di atas menunjukkan proses bekalan air dari sebuah tangki di atas puncak bukit ke tangki X atas  sebuah bangunan tinggi.

What is the pressure of the water at X?

Berapakah tekanan air di X?


   

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ANSWER

B