9 of 10 Questions Assignment Score: 0% Resources Ly Give Up? Hint Check Answer 1 Question 0% Press Esc to exit full screen 0 of co Attempts Starting from rest, your friend dives from a high cliff into a deep lake below, yelling in excitement at the thrill of free-fall on her 2 Question 0% way down. You watch her as you stand on the lake shore immediately below, and at a certain instant your keen hearing 0 of co Attempts recognizes that the usual frequency of her yell, which is 927 Hz, is shifted by 53.1 Hz. Macmillan Learning 3 Question 0% 0 of co Attempts Is this shift an increase or a decrease in the frequency? 4 Question 0% 0 of co Attempts O cannot tell from the information provided O decrease 5 Question 0% 0 of co Attempts increase 6 Question 0% 0 of co Attempts How long t has your friend been in the air when she emits the yell whose frequency shift you hear? Use v = 344 m/s for the 7 Question 0% speed of sound in air and g = 9.80 m/s for the acceleration due to gravity. 0 of co Attempts 8 Question 0% 0 of co Attempts 1 = 9 Question 0% 0 of co Attempts 10 Question 0% 0 of co Attempts10 of 10 Questions Assignment Score: 0% Resources Ly Give Up? Hint Check Answer Press Esc to exit full screen 1 Question 0% 0 of co Attempts Tom is flying in his fighter jet at Mach 1.97 at an altitude of 1150 m. He flies past his friend Val who is standing on the ground. 2 Question 0% 0 of co Attempts Given that the speed of sound in air is 331 m/s, how much time t passes before Val hears the sonic boom after the plane flies Macmillan Learning directly overhead? 3 Question 0% 0 of co Attempts 4 Question 0% 1 = 0 of co Attempts 5 Question 0% 0 of co Attempts 6 Question 0% 0 of co Attempts 7 Question 0% 0 of co Attempts 8 Question 0% 0 of co Attempts 9 Question 0% 0 of co Attempts 10 Question 0% 0 of co Attempts