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.
How much money does a CNA make an hour is also an important question to ask. The average CNA pay is $11.97 an hour. On the lower range of the CNA hourly pay is $8.34, while the higher end of CNA wages is $15.97.These will increase as you work more and depending on what type of employer you have.ow much money does a CNA make an hour is also an important question to ask. The average CNA pay is $11.97 an hour. On the lower range of the CNA hourly pay is $8.34, while the higher end of CNA wages is $15.97.