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2 cards from this section. Quick, good the night before a test.
What is the formula for calculating the resultant force on a flat surface?
Think about how pressure and area relate.
Define the term centroid in fluid mechanics.
This is where the average position of mass is located.
What does the resultant force on a surface depend on?
Recall the equation used.
True or False: The center of pressure is always located above the centroid in a fluid.
Consider how pressure affects their locations.
A curved arch of a bridge submerges 3 meters underwater with a horizontal cross-section of 8 square meters. Calculate the resultant force acting on the arch, assuming the fluid density is 1000 kg/m³.
Use the density to determine pressure and multiply it by the area.
Analyze how the center of pressure would shift if the curved surface was tilted at a 30-degree angle compared to the horizontal. What would be the relationship observed?
Consider how pressure changes with additional depth.
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