Air speed is defined as the speed of an airplane with relation to the air, as compared to regular speed, which is the speed relative to the earth. In 1968, according to the Guinness Book of World Records, a record airspeed of 2,070.102 mph (925 m/s) was achieved by a Lockheed YF-12A.
Physical therapy sessions typically last 30â60 minutes each, from one to many times a week, depending on why a person is receiving therapy. As you make progress, your visits may change in length and frequency. You'll learn new techniques to help continue your healing.
To make this calculation, the law allows employers to choose a prior period of time of three to 12 months. Calculation: Hours of service an employee works in a previous time period of three to 12 months divided by the number of weeks in the same time period equals the average hours worked per week.