The mass of the body is found by simply weighing a person on a scale. The volume of the body is most easily and accurately determined by completely immersing a person in water and calculating the volume of water from the weight of water that is displaced (via underwater weighing).
Mailman Salary Statistics as of 2015. Average annual salary for a Mailman is $36600 based on statistics in the U.S. as of 2015. The highest salary recorded was $76765. The lowest salary reported was $15604. These figures will vary on a state to state basis as these are averages across all 50 states.
Postal Service Mail Carrier Salary. Postal Service Mail Carriers in the United States take home approximately $16.18 per hour on average. Earnings sit near $14.39 per hour on the lower side but can approach $24.27 on the higher side. Career duration and the particular city each impact pay for this group, with the former having the largest influence.