At sea level, what is the weight of the atmosphere typically measured at?

At sea level, the weight of the atmosphere is typically measured at approximately 14.7 pounds per square inch (psi). This measurement represents the standard atmospheric pressure, which is the force exerted by the weight of the air above a given surface area.

The value of 14.7 psi is crucial in many scientific and engineering applications, including diving physics, as it influences how gases behave under different pressures. For example, knowing the atmospheric pressure at sea level helps divers understand how pressure changes as they descend underwater.

The other values for atmospheric pressure, such as 10.5 psi, 21 psi, and 30 psi, do not reflect the established standard for sea level atmospheric pressure. Therefore, recognizing that 14.7 psi is the standard allows for accurate calculations in various real-world scenarios involving pressure.