Q1. If a thunder clap comes 1.4 s after the lightning strike, how far away is the strike? Calculating the wavelength and the speed of sound in air 330 m/s.
Q2. Speedboat A negotiates a curve whose radius is 150 m. Speedboat B negotiates a curve whose radius is 190 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats?