Name: PW 2 - Wave Terminology and the Universal Wave Equation - Assignment This assignment covers PW 1 and PW 2. Show all formulas, substitutions with units, and answers with units and correct sig figs. 1. A space ship sends a radio transmission back to earth, which is 2.75 x 109 m away. How long will this transmission take? 3 2. When a strobe light is turned on it flashes 20.0 times in 3.00 seconds. What is the frequency of the light? 3 3 6 3. A wave moves with a speed of 20.0 cm/s. What is the wavelength in meters if the frequency of the wave is 0.235 Hz? 4. A wave 1.30 m long travels 80.0 m in 25 s. What is the period of the wave? A: B: D Name: 5. In the diagram below, what do the following letters represent? B D - - 5 C: D: E: 6. The horizontal distance between a point of equilibrium on a wave and the middle of a crest is 2.50 m. What is the period if the wave travels 20.0 m in 35.0 s? 3 7 7. The distance between two crests of a long radio wave is 2.50 km. What is the frequency of this wave? 30