11. At SeaWorld, Tilikum (the killer whale) is responding to his trainer's commands by "singing" under water. If the speed of sound in the aquarium water is 1445 m/s, and if Tilikum is singing a beautiful C6 note (which oscillates
1046.5 times every second), then what is the wavelength of his voice?

Iwill give brainliest if you answer right : )

Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600