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 national average pay for a CNA ranges from $8.55 per hour at the low end to $16.62 on the high end. The median CNA hourly rate is $11.54. Annually, average CNA pay goes from $17,800 to $34,600 at the high end, with a median salary of $24,000.