(1b) What frequency of electromagnetic wave in vacuum would have the same wavelength as the ultrasound wave above? 1.02(MHz) Submit Answer Incorrect. Tries 1/10 Previous Tries(4e) Calculate the transverse displacement when x = 4.0 cm and t = 0.37 s. 5.39(cm) Submit Answer Incorrect. Tries 1/10 Previous TriesV" q (3) A heavy piece of hanging sculpture is suspended by a 92.4 cm long, 6.09 9 steel wire. When the wind blows hard, the wire hums at its fundamental frequency of 62.4 Hz. What is the mass of the sculpture? 34100(kg) Incorrect. Tries 1/10 Previous Tries "a (4) A 43.8cm long wire with a mass of 3.60g and a tension of 627.0N passes across the open end of an open-closed tube of air. The wire, which is fixed at both ends, is bowed at the center so as to vibrate at its fundamental frequency and generate a sound wave. Then the tube length is adjusted until the fundamental frequency of the tube is heard. What is the length of the tube? (Assume vsound = 340.0m/s) 13.5(cm) SubmitAnswer Incorrect. Tries 1/10 Previous Tries \"a (5) A stretched wire vibrates in its fundamental mode at a frequency of 450 Hz. What would be the fundamental frequency if the wire were half as long, its diameter were doubled, and its tension were decreased by a factor of two? 159(Hz) SubmitAnswer Incorrect. Tries 1/10 Previous Tries "a " q (8) A 102.3 g cord has an equilibrium length of 5.68 m. The cord is stretched horizontally to a length of 7.47 m, then vibrated at 28.2 Hz. This produces a standing wave with two antinodes. What is the spring constant of the cord? 1358(N/m) SubmitAnswer Incorrect. Tries 2/10 Previous Tries " q (9a) A 134.7 cm long, 8.27 g string, fixed at both ends, oscillates in its n = 3.00 mode with a frequency of 338.0 Hz and a maximum amplitude of 4.96 mm. What is the wavelength of the oscillation? 8.983(10'3l m You are correct. Your receipt no. is 162-5537 @ (9b) What is the tension in the string? 5.65(N) SubmitAnswer Incorrect. Tries 2/10 Previous Tries "a Previous Tries 9 3 (10a) What is the longest wavelength for standing sound waves in a 134.8cm long tube that is open at both ends? 2.70 In You are correct. Your receipt no. is 162-9686 @ (10b) What is the second longest wavelength? 1.35 m Previous Tries You are correct. Your receipt no. is 162-6229 @ W (10c) What is the third longest wavelength? 8.99x10'1 m You are correct. Your receipt no. is 162-9928 @ W (10d) What is the longest wavelength for a standing wave, in the same length tube, that is open at one end and closed at the other? 5.39 In You are correct. Your receipt no. is 162-4604 @ (10e) What is the second longest wavelength? 1.80 m Previous Tries You are correct. Your receipt no. is 162-3824 @ (101') What is the third longest wavelength? 269.6(cm) SubmitAnswer Incorrect. Tries 3/10 Previous Tries "a Previous Tries (1c) What is the index of refraction of a material in which the red-light wavelength is 595.0 nm? The wavelength of the red light in a vacuum is 650.0 nm. Enter no units. 0.504*10^15 Submit Answer Incorrect. Tries 1/10 Previous Tries"R (4a) The light beam shown in the figure below makes an angle of o = 18.9 deg with the normal line NN' in the linseed oil. Determine the angle 6. (The refractive index for water is 1.33 and for linseed oil is 1.48.) 12.6(deg) SubmitAnswer Incorrect. Tries 1/10 Previous Tries | \"(I Air N Linseed oil I l \\ I (4b) Determine the angle 0'. 14.1(deg) SubmitAnswer Incorrect. Tries 1/10 Previous Tries "R (5a) Light of wavelength 574.0 nm passes through two slits separated by 0.120 mm and is observed on a screen 2.00 m behind the slits. The location of the central maximum is marked on the screen and labeled y = 0.00. At what distance, on either side of y = 0.00, are the m = 3.00 bright fringes? 28.7(cm) SubmitAnswer Incorrect. Tries 1/10 Previous Tries