2. In a Chabot College physics lab experiment, a piece of balsa wood is completely submerged under the water. The wood is at rest and is tethered by a string to the bottom of a container of seawater. The balsa wood has volume is 1.333 x 10 -6 m and density of 0.157 x 10 kg/m³. Seawater, on the other hand, can have a density of 1.023 x 10³ kg/m³. Answer the following questions and show all work and reasoning. (a) What is the direction of the buoyant force acting on the wood, up or down? Circle "up" or "down." (b) What is the direction of the tension force acting on the wood, up or down? Circle "up" or "down."? (c) What is the direction of the force of gravity acting on the wood, up or down? Circle "up" or "down." ?
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.
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