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 average CNA salary is $23,450. Filter by location to see CNA salaries in your area. Salary estimates are based on 3,401 salaries submitted anonymously to Glassdoor by CNA employees.