Mass is the physical quantity
Answer:D
Explanation:
It was right o khan academy
submarinismo is scuba diving but Bueco is dive
To solve this problem we will apply the concepts related to pressure, depending on the product between the density of the fluid, the gravity and the depth / height at which it is located.
For mercury, density, gravity and height are defined as



For the air the defined properties would be



We have for equilibrium that


Replacing,

Rearranging to find 


Therefore the elevation of the mountain top is 9400ft
Its true i hope this helps you. Tell me if it is correct. ( =