The distributions of molecules along the velocity projections v on the coordinate axis (i = x,y,z) are mutually independent. Using this, define in the task 5.2.1 the number of nitrogen molecules in 1 cm3, the horizontal velocity components of which, as well as the vertical components, lie in the range from 999 to 1001 m/s: the number of molecules, the horizontal velocity components of which lie in the range of 1000±0.1 m/s, and the vertical components in the range of 1000±2 m/s.