A stone is dropped into a lake. Calculate the increase in pressure on the stone caused by the water when it sinks from 1 m deep to 6 m deep. Calculate the depth of water in a dam when the pressure at the bottom is , Pa. Change the subject of the equation. An object that is partly, or completely, submerged experiences a greater pressure on its bottom surface than on its top surface. This causes a resultant force upwards. This force is called upthrust.
How is hydrostatic pressure created? How does atmospheric pressure change in the troposphere? Does air pressure change with humidity? How does atmospheric pressure affect boiling points? How is air pressure measured for weather information? How do air pressure regulators work? How do different air pressure affect the weather?
Atmospheric pressure reduces with altitude for two reasons, both of which are related to gravity. Those lower down have to support more molecules above them and are further compressed pressurised in the process. Emissions and atmospheric metrology. Environmental monitoring. Our research and measurement solutions support innovation and product development.
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