In: Physics
1 The equation of a transverse wave on a string is ? = (2.0 ?) sin(20? − 600?). What is the wave speed of the wave and the linear density of the string if it has a tension of 15 ??
2 A block is in simple harmonic motion on the end of a spring with its position given by ?(?) = ? cos(?? + ?). If ? = ?/5 ???, then at ? = 0 ? what percentage of the total mechanical energy is potential energy?