Combing your hair leads to excess electrons on the comb.

Determine the frequency of light at 3.55 × 10² nm and 6.71 x 10² nm. X (a) (b) 3.55 x 10² nr nm Hz 6.71 x 10² nm Hz

AM 100m Electromagnetic Spectrum FM TV Radio waves 1m Radar 1cm TV Remote Infrared 0.01cm Light Bulb 1000nm O Lightning has more energy than the radio because gamma rays have a longer wavelength. Ⓒ Lightning has less energy than the radio because gamma rays have a shorter wavelength. O Lightning has more energy than the radio because gamma rays have a shorter wavelength. O Lightning has less energy than the radio because gamma rays have a longer wavelength. Sun Ultraviolet 10nm X-ray machine X-rays Building Size Lightning contains gamma rays. Based on the position of gamma rays in the electromagnetic spectrum, does lightning have more or less energy than a radio? Radioctive Elements wwwwwwwwww Gamma rays VISIBLE SPECTRUM 0.01nm 0.0001nm Atom Size

11. The electric and magnetic fields of an EM wave moving through free space at an instant in time are given by the expressions: N E = (80.0â + 32.0ŷ – 64.02) B = (0.200âx + 0.080ŷ + 0.290£) µT a) Show that the two fields are perpendicular to each other. (10 pts.) b) Compute the Poynting Vector (S). (10 pts.)