Ana holds a red laser, emitting at 632.8 nm, pointed toward Braden. Initially both are at rest. a) Ana begins moving toward Braden at 10.0 m/s. What is the change in wavelength between what is emitted and what Braden detects? State your answer in the form an “increase of ______ nm” or a “decrease of ______ nm.” ________________________ of ________________________ b) If Braden now also moves, at 15.0 m/s in the direction away from Ana, and he looks over his shoulder to see the laser light, what change in wavelength will he detect relative to the laser emission? ________________________ of ________________________ c) If Braden has a mirror strapped to his back, so that the laser light reflects off the mirror and returns to Ana, what change in wavelength will she detect, relative to the laser emission? They are both still moving at the same rates as in (b). ________________________ of ________________________

Ana holds a red laser, emitting at 632.8 nm, pointed toward Braden. Initially both are at rest. a) Ana begins moving toward Braden at 10.0 m/s. What is the change in wavelength between what is emitted and what Braden detects? State your answer in the form an “increase of nm” or a “decrease of nm.” of b) If Braden now also moves, at 15.0 m/s in the direction away from Ana, and he looks over his shoulder to see the laser light, what change in wavelength will he detect relative to the laser emission? of c) If Braden has a mirror strapped to his back, so that the laser light reflects off the mirror and returns to Ana, what change in wavelength will she detect, relative to the laser emission? They are both still moving at the same rates as in (b). of ____