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 annual certified nursing assistant or CNA salary is $26,020. Individuals who fall in the lowest 10% of all certified nursing assistants are expected to earn less than $18,600 each year whereas those with more experience, in the top 10% pay bracket, can expect $35,780 or more.