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14. What is the wavelength and kind of an electromagnetic wave that has a frequency of 7.00x103Hz? 4.29x104m, radio 15. A wave has an intensity of 1.00W/m2 . What is its energy density and the amplitude of its electric and magnetic fields? 3.33x10-9J/m3, Eo = 27.4V/m, Bo = 9.16x10-8T 16. A wave has an intensity of 2.00W/m2 . What is its energy density and the amplitude of its electric and magnetic fields? 6.67x10-9J/m3, Eo = 38.8V/m, Bo = 1.30x10-7T 17. A wave has an intensity of 3.00W/m2 . What is its energy density and the amplitude of its electric and magnetic fields? 1.00x10-8J/m3, Eo = 47.5V/m, Bo = 1.59x10-7T 18. A wave has an intensity of 4.00W/m2 . What is its energy density and the amplitude of its electric and magnetic fields? 1.33x10-8J/m3, Eo = 54.9V/m, Bo = 1.83x10-7T 19. A wave has an intensity of 5.00W/m2 . What is its energy density and the amplitude of its electric and magnetic fields? 1.67x10-8J/m3, Eo = 61.4V/m, Bo = 2.05x10-7T 20. A source moves away from an observer at 5.00m/s . The observer moves away from the source at 3.00m/s . What is their relative velocity? 8.00m/s 21. A source moves away from an observer at 24.0m/s . The observer moves away from the source at 46.4m/s . What is their relative velocity? 70.4m/s 22. A source moves away from an observer at 9.00m/s . The observer moves toward the source at 6.00m/s . What is their relative velocity? 3.00m/s 23. A source moves away from an observer at 43.0m/s . The observer moves toward the source at 26.9m/s . What is their relative velocity? 16.1m/s 24. A source moves toward an observer at 7.00m/s . The observer moves away from the source at 1.00m/s . What is their relative velocity? -6.00m/s 25. A source moves toward an observer at 46.7m/s . The observer moves away from the source at 86.1m/s . What is their relative velocity? 39.4m/s 26. A source moves toward an observer at 2.00m/s . The observer moves toward the source at 3.00m/s . What is their relative velocity? -5.00m/s 27. A source moves toward an observer at 28.5m/s . The observer moves toward the source at 38.7m/s . What is their relative velocity? -67.2m/s 28. A source emits a wave of frequency 1.5000x1015Hz . The source and observer have a relative velocity of 1.00x105m/s. What is the observed frequency? 1.4995x1015Hz