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.
![Q4]
A hallow metal sphere with mass m =
355.0kg is held to the bottom of a water tank using an ideal
d
Rope
Figure 1: Hallow sphere in liquid attached to the bottom of a tank.
rope such that its top is at a depth of d = 27.50m below the surface as shown in Figure 1. The sphere has
an outer radius of r, = 46.83cm, and an inner radius of r; = 41.47cm.
a) Draw a free body diagram for the sphere.
b) What material is the sphere made of.
c) What is the tension in the rope?
d) The rope is cut and the sphere is allowed to float. What is the magnitude of the acceleration of the
sphere as it floats to the surface?
e) The rope is cut and the sphere is allowed to float to the surface. How much of the sphere remains
below the surface?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd0e3b137-93c3-4f8a-ba86-2ec6c73db472%2F1064f58e-14c6-4f6c-adda-93b2a9c13f94%2Frczbjyc_processed.jpeg&w=3840&q=75)
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