6. You will be conducting an online lab for this question. Follow the steps to answer parts H. ii. iii. iv. vi. vii. viii. ix. 1" li" l Ii" Upen the PheT "'Wave Interference" lab by typing the following link into your web browser: bitJnyUthVw Select the \"Interference" option. Select the \"Slow" option. Select the Sound wave option by clicking the speaker. Drag the pressure sensor above the grey window. Don't adjust the variables [mid-level frequency, Inax amplitude, and separation EDD cm.) Turn on each speaker by hitting the green buttons. Play with the pressure sensor by moving a sensor around the window and observing the screen on the sensor. In what areas (black, white or grey] is destructive interference occurring? How is destructive interference created In this scenario? [Use the words crest, trough, and wave.) Write these observations in your notes. Pause the window. Drag the tape measure onto your window and use it to measure the wavelength. [You may want to see p.426-427 of your textbook.) What is the wavelength of the sound waves emitted by the speakers? Write your observation in your notes. xiii. Press play to resume the waves. xiv. Drag the timer onto your window and use it to measure the period. 1) Count the number of cycles in a chosen amount of time. 2) The more seconds you run the timer for while counting, the more accurate your frequency calculation will be. 3) You may toggle between "normal" and "slow" speed to count more cycles in less time. 4) Divide the number of cycles you counted by the amount of time in step 1 to determine the number of cycles per millisecond. 5) Convert your units to Hz or cycles per second. 6) What is the frequency of the sound waves emitted by the speakers? Answer to 3 significant digits. Write your observation in your notes. a) What is the period of the sound waves emitted by the speakers? Answer to 3 significant digits. (1) b) Use your answers from part xi and 6 to calculate the speed of sound in m/s. Answer to 3 significant digits.c) If a person were standing where the end of the tape measure is located in the Figure 1 below, what would they hear? Explain. (Hint: Make sure you include the type of interference that is going on and how that interference is created) -/ 50 em 1 ma = 10-3 9 O 3:36.4 cim FIGURE 2: IMAGE TAKEN FROM PHET INTERACTIVE SIMULATIONS: UNIVERSITY OF COLORADO BOULDER FIGURE 3 XV. Click on the faucet option beside the speaker to change to simulation to water waves. d) Describe the motion of a duck floating on the surface of the water along a nodal line. e) Describe the motion of a duck floating on the surface of the water along an antinodal line