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 salary for a CNA in Florida as of January 2011 was about $30,230 per year, according to CBSalary, a salary calculator affiliated with CareerBuilder.com. The middle 50 percent of the earnings scale was a wide range at $24,550 to $41,720.