It takes 23 seconds to hoist a rescue diver of mass 80 kg from the ocean surface to a helicopter hovering 23.9 meters above the ocean surface using a motor-driven cable. How much power (in Watts) was supplied by the motor to hoist the diver into the helicopter at a constant speed

The force will determine the acceleration.

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

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