Write out the full solutions to BOTH calculation questions. Show all steps of your work. Give your final answer to two significant figures. Each Question is worth 4 marks. Scan or take a photo of your work. You do not need to attach your original question sheet (I of course already have a copy of that). Due Date: Here are the questions; 1. For a 21 cm long air column closed at one end resonating at its 5th harmonic, determine the frequency of the resonating air if the speed of sound is 450 m/s. 2. A car travelling at 74 km/h moves away from an opera singer hitting a long sustained note with a frequency of 340 Hz. What is the frequency of the note heard by the driver in the car if the speed of sound is 340 m/s? Reminder: Don’t forget to convert km/h to m/s.