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.
Certified Nurse Assistant (CNA) Salary The average pay for a Certified Nurse Assistant (CNA) is $11.68 per hour. A skill in Operating Room / OR is associated with high pay for this job. Pay for this job does not change much by experience, with the most experienced earning only a bit more than the least. People in this job generally don't have more than 20 years' experience.