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.
Salary Overview. According to PayScale.com, the median wage for a CNA was $22,918 per year as of January 2014. Salaries in the 10th through 90th percentiles ranged from $18,044-$31,514 annually.Important factors that can affect your salary as a CNA include your location, experience and your industry within the nursing field.alaries by Experience. January 2014 data from PayScale.com showed that the reported salaries for CNAs varied by number of years of experience. The salary range for those possessing less than a year of experience was $17,544-$43,359, while those with 1-4 years of experience reported salaries of $14,371-$38,701.