C=205 , D = 15

1. You are riding a roller coaster. Your mother who is standing on the ground yells out behind at a frequency of D x200 Hz, but it sounds to you like C Hz. Take Vand=343 m/s. a. What is the true frequency of your mom? (10 points) b. What is the frequency you hear? (10 points) c. Explain which of 4 categories belong to this problem? (10 points) d. Which one is source which one is observer? (10 points) e. Calculate the speed of your ride? (20 points) f. Now you yell at D x200 Hz, what will be the frequency your mom will hear if you move toward your mom? (15 points)