94. (a) The mass and the radius of the sun are, respectively, 1.99 3 1030 kgand 6.96 3 108 m. What is its density? (b) If a solid object is made froma material that has the same density as the sun, would it sink or fl oat inwater? Why? (c) Would a solid object sink or fl oat in water if it weremade from a material whose density was the same as that of the planetSaturn (mass 5 5.7 3 1026 kg, radius 5 6.0 3 107m)? Provide a reason for your answer
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.
94. (a) The mass and the radius of the sun are, respectively, 1.99 3 1030 kg
and 6.96 3 108 m. What is its density? (b) If a solid object is made from
a material that has the same density as the sun, would it sink or fl oat in
water? Why? (c) Would a solid object sink or fl oat in water if it were
made from a material whose density was the same as that of the planet
Saturn (mass 5 5.7 3 1026 kg, radius 5 6.0 3 107
m)? Provide a reason for your answer
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