р Σπερχε can A water molecule (H2O) has a dipole moment of 6.17 x 10-30 C. m. A water molecule located at the origin whose dipole moment P points in the +x-direction. A chlorine ion (CI), of charge -1.60 × 10-19 C, is located at x = 2.99 × 10-9 m. Find the size and direction of the electric force that the water molecule exerts on the chlorine ion. Assume that x is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis E = be used, where p is the dipole moment, and x is the distance between ions. magnitude N Is this force attractive or repulsive? attractive O repulsive

An electric dipole consists of a particle with a charge of +5.4x106 C at the origin and a particle with a charge of -5.4 x 10-6 Con the x axis at x = 9.7x 10 m. Its dipole moment is: O 5.24e-8 O 5.24e-5 5.24e-7 0.00

Two red blood cells each have a mass of 9.05 × 10-14 kg and carry a negative charge spread uniformly over their surfaces. The repulsion arising from the excess charge prevents the cells from clumping together. One cell carries -3.00 pC and the other -2.60 pC, and each cell can be modeled as a sphere 3.75 × 10-º m in radius. If the red blood cells start very far apart and move directly toward each other with the same speed, what initial speed would each need so that they get close enough to just barely touch? Assume that there is no viscous drag from any of the surrounding liquid. initial speed: m/s What is the maximum acceleration of the cells as they move toward each other and just barely touch? maximum acceleration: m/s?