Question 5. On a cold frigid day, Prayush blows on a 0.500 m long toy flute that is open at both ends. The fundamental frequency of the flute is 350 Hz. (a) Determine the temperature of the air in the flute. (3 marks) (b) If the temperature is increased by 20.0 C, what is the new fundamental frequency of the flute? (5 marks) (c) How many overtones are present within the audible range at 20.0 C ? (2 marks) Hint: Be sure to include the effects of temperature on both the speed of sound in the air and the length of the flute, and the coefficient of linear expansion of flute as 19 x 10-( C)-1.)