Homework 13 Physics 221 1 . Two wave pulses on a string travel in opposite directions at 100 m/s. The below figures show a snapshot graph at t = Os when the waves are overlapped, and a snapshot graph of the right traveling wave at = 0.05s. Draw a snap shot graph of the left traveling wave at t = 0.05s. Overlapped Waves t=0s D (cm) - 1 - 2 2 4 6 8 10 12 14 x (m) Right Moving Wave at t = 0.05s 2 D (cm) 0 -1 -2 2 4 6 8 10 12 14 x (m) 2. a). A 100.0 W light bulb produces 2.0 W of visible light. (The other 98.0 Watts of power are dissipated as heat and infrared radiation). What is the light intensity on a wall 2.0 m away from the light bulb? b). A krypton laser produces a cylindrical red laser beam 2.0 mm in diameter with 2.0 W of power. What is the light intensity on a wall 2.0 m away from the laser