Question
Dolphins can hear ultrasound with frequencies up to 280 kHz. What is the speed of sound in water if the wavelength of ultrasound with a frequency of 2.80 × 10^5 Hz is 0.510 cm?
How long would it take this sound wave to travel to a dolphin 3.00 km away?
How long would it take this sound wave to travel to a dolphin 3.00 km away?
Answers
Henry
a. L = V/F = 5.1*10^-3.
V/(2.8*10^5) = 5.1*10^-3.
V = m/s.
b. d = V*t; t = d/V = 3000/V.
V/(2.8*10^5) = 5.1*10^-3.
V = m/s.
b. d = V*t; t = d/V = 3000/V.