II. Oil of density 800 is now steadily added to the beaker, forming a layer above the water and surrounding the m³ block. The oil exerts forces on each of the four sidewalls of the block that the oil touches. What are the directions of these forces? [Select]
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
![The weight of a rectangular block of low-density material is 15.0 N. With a thin string, the center of the horizontal
bottom face of the block is tied to the bottom of a beaker partly filled with water. When 25.0% of the block's volume is
submerged, the tension in the string is 10.0 N.
1. Find the buoyant force on the block.
[Select]
II. Oil of density 800 is now steadily added to the beaker, forming a layer above the water and surrounding the
block. The oil exerts forces on each of the four sidewalls of the block that the oil touches. What are the directions of
these forces? [Select]
III. What happens to the string tension as the oil is added? Explain how the oil has this effect on the string tension.
[Select]
IV. The string breaks when its tension reaches 60.0 N. At this moment, 25.0% of the block's volume is still below the
water line. What additional fraction of the block's volume is below the top surface of the oil?
[Select]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6659d3e4-e4af-40c5-9bda-00608d7fc7c4%2F0175116f-b7fb-470b-8a50-bbe88e2729a2%2F24h543g_processed.jpeg&w=3840&q=75)
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