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.
CNA Pay and Benefits. CNA pay and benefits will depend on where you work, but the U.S. Bureau of Labor Statistics (BLS) 2014-15 Occupational Outlook Handbook lists the annual median salary for CNAs as $24,400.The lowest 10 percent earn less than $18,300, but the top 10 percent earn $35,330.NA Pay and Benefits. CNA pay and benefits will depend on where you work, but the U.S. Bureau of Labor Statistics (BLS) 2014-15 Occupational Outlook Handbook lists the annual median salary for CNAs as $24,400.