SSI Open Water UPDATED Exam Questions and CORRECT Answers
How much does air weigh per cubic foot? - 0.8 lbs How much does fresh water weigh per cubic foot? - 62.5 lbs how much does salt water weigh per cubic foot? - 64 lbs what does SCUBA stand for? - Self contained underwater breathing apparatus Absolute pressure (ambient pressure) - the total pressure exerted on an object; 1 atmosphere exerted by air above the surface + additional pressure by water at depth. gauge pressure - the pressure readings on gauges that reads zero at 1 atmosphere Boyle's Law - pressure and volume are inversely proportional
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