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29. A source emits a wave of frequency 1.0000x1015Hz . The source and observer have a relative velocity of 1.50x105m/s. What is the observed frequency? 9.995x1014Hz 30. A source emits a wave of frequency 7.500x1014Hz . The source and observer have a relative velocity of -2.00x105m/s. What is the observed frequency? 7.505x1014Hz 31. A source emits a wave of wavelength 5.000x10-7m . The source and observer have a relative velocity of -2.50x105m/s. What is the observed wavelength? 4.996x10-7m 32. A source emits a wave of wavelength 6.000x10-7m . The source and observer have a relative velocity of 3.00x105m/s. What is the observed wavelength? 6.006x10-7m For Problems 33 - 40, a laser has in intensity of 0.500mW/mm2 and has its polarization aligned with the y-axis. 33. What is the intensity of the light after passing through a polarizer aligned with the x-axis? 0 34. What is the intensity of the light after passing through a polarizer aligned 10.0o up from the x-axis? 1.51x10-2mW/mm2 35. What is the intensity of the light after passing through a polarizer aligned 30.0o up from the x-axis? 0.125mW/mm2 36. What is the intensity of the light after passing through a polarizer aligned 45.0o up from the x-axis? 0.250mW/mm2 37. What is the intensity of the light after passing through two polarizers, the first aligned 45.0o up from the x-axis, and the second aligned with the x-axis? 0.125mW/mm2 38. What is the intensity of the light after passing through three polarizers, aligned at 60.0o, then 30.0o up from the x-axis, and the third aligned with the x-axis? 0.211mW/mm2 39. What is the intensity of the light after passing though six polarizers, aligned at 75.0o, 60.0o, 45.0o, 30.0o, 15.0o, and 0.0o up from the x-axis? 0.330mW/mm2 40. What is the intensity of the light after passing though nine polarizers, aligned at 80.0o, 70.0o, 60.0o, 50.0o, 40.0o, 30.0o, 20.0o, 10.0o, and 0.0o up from the x-axis? 0.380mW/mm2