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.
Physical Therapist Assistant in Charlotte, North Carolina Salary. A Physical Therapist Assistant in Charlotte, North Carolina earns an average wage of $27.86 per hour. Most people move on to other jobs if they have more than 20 years' experience in this field. $21.11 - $30.88.