There is a fish called an archer fish that shoots drops of water at insects resting on branches above the water. if the archer fish is aiming at an insect with (x, y) coordinates of (0.5,0.25) and spits water at an angle of 40 degress relative to the surface of the water. at what speed v should an archerfish spit the water to shoot down a floating insect located at that distance?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?