Unit of pressure is:
Pascal
The unit of pressure in the SI system is the Pascal (Pa). Pressure is defined as force per unit area, and one Pascal is the pressure exerted when a force of one newton is applied over an area of one square meter.
Other units like Newton and Angstrom do not represent pressure. Newton is the unit of force, and Angstrom is used for measuring very small distances, typically atomic scale.
One mile is approximately equivalent to _______ kilometres.
Nuclear sizes are expressed in a unit named