An archer fish launches a droplet of water from the surface of a small lake at an angle of 70° above the horizontal. he is aiming at a juicy spider sitting on a leaf 40 cm to the east and on a branch 23 cm above the water surface. the fish is trying to knock the spider into the water so that the fish can eat the spider. (a) what must the speed of the water droplet be for the the fish to be successful?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.