What is neutral buoyancy
What do you mean by the term neutral buoyancy? Briefly illustrate it.
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Buoyancy is the total upward force experienced by the object submersed in the fluid. Pascal's principle states that fluid pressure on an object rises with depth, thus there is a greater pressure on the bottom of object than the top, resultant in a total upward force. Whenever an object's buoyancy is bigger than its weight, then the object will float.
Describe the universal law of universal gravitation? Briefly describe it.
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