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Volume.
Tidal Volume
The amount of matter in an object is usually described with its mass or volume.
The amount, called tidal volume, is basally about half a litre/500ml. But it, multiplies upon exertion.
Zero work.
The amount of air that is inhaled or exhaled in one breath during unforced breathing is the tidal volume.
Vital Capacity (VC) is the maximum amount of air that can be exhaled after a maximum inhalation. But it differs from one person to another. For a normal sized male that would be 4600 ml.
The maximum volume for intradermal injection is 0.1 ml and the maximum volume for subcutaneous injection is 2ml.
You will get the maximum volume in the case of a sphere. You can use the formula for the surface of a sphere to calculate the radius; from there, you can calculate the corresponding volume.Similarly, for other objects, such as a cube, the volume you get will be less.
the depth of respiration
spirometer
tidal volume