Let us assume we are using Sl units (kg, m, s). Consider the harmonic travelling wave y(x, t) = 12 cos(3x – 12πt). - m Assume the above harmonic wave is a solution of the motion of a string with tension T = 1 Newton. What is the string's density? p = kg/m What is its kinetic energy density? What is its kinetic energy over one wavelength? EK What is its potential energy density? = What is its potential energy over one wavelength? Ev J/m J/m

Let us assume we are using Sl units (kg, m, s). Consider the harmonic travelling wave y(x, t) = 12 cos(3x – 12πt). - m Assume the above harmonic wave is a solution of the motion of a string with tension T = 1 Newton. What is the string's density? p = kg/m What is its kinetic energy density? What is its kinetic energy over one wavelength? EK What is its potential energy density? = What is its potential energy over one wavelength? Ev J/m J/m