A cord is anchored to a wall at one end. It passes over a pulley and is attached to a mass at the other end. When the cord is plucked, it vibrates in its fundamental mode. The sound waves that emerge from the cord have a wavelength of 78cm. The cord is 63cm long and has a mass of 5.4g
What is the resonant frequency of the cord?
What is the wavelength of the fundamental mode of vibration in the cord?
What is the speed of a wave in the cord?
What is the weight of the mass?/