an object on a level horizontal surface is thrown with a velocity of 30. ?/s at an angle of 40° with respect to the horizontal fill in the following chart

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.