A parachutist slows when his parachute opens. Where does the kinetic energy go? a
It is transformed to elastic potential energy
b
It is transformed to gravitational potential energy
c
It is transformed to heat.
d
It is destroyed.

Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm