We can calculate the wavelength of sound waves that we can hear using the formula wavelength = velocity / frequency. In air sound travels at about 340 meters per second (the precise value depends on temperature, humidity, and pressure).
The average salary for certified nursing assistant jobs in Raleigh, NC is $37,000. Average certified nursing assistant salaries can vary greatly due to company, location, industry, experience and benefits.
The CNA position in North Carolina offers a competitive median CNA Salary of $23,200 a year as reported by the Occupational Employment Statistics in North Carolina.tep 1: Find an approved program in your state: Find a CNA Training Program. A North Carolina state approved nurse aide training program should have a number of basic elements met in order to be sufficient training for the state exam.