1. A 0.600 m long pendulum is used to determine the acceleration due to gravity on a distant planet. If 20 complete oscillations are completed in 35.5 s the acceleration would be? Show all your work!
2. If you hear your echo 1.10 s after you shout across a canyon and soundwaves travel 340 m/s how wide is the canyon? Show all your work!
3. If the distance between two consecutive nodes in a vibrating spring is 12.0 cm and the frequency of the source is 18.0 Hz what are the wavelength and the speed of the wave? Show all your work!