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 salary. The CNA salary depends on how much experience you have, which state and city you work in, and your working environment. By experience: Having no experience or less than 1 year experience can expect an average yearly salary that ranges from $20,000-$31,000.NA salary. The CNA salary depends on how much experience you have, which state and city you work in, and your working environment. By experience: Having no experience or less than 1 year experience can expect an average yearly salary that ranges from $20,000-$31,000.