Dolphins rely on echolocation be able to survive in the ocean in a $20\backslash$deg C ocean a dolphin produces an ultrasonic sound with a frequency of $105$ kHz use $1530$ m$/$s for the speed of the sound in $20\backslash$deg Celsius, ocean water what is the wavelength of the sound in meters or remaining stationary the dolphin admits a sound pulse and receive an echo after $0\mathrm{.}140$ seconds how far away in meters is a reflecting object from dolphin?