Two stationary positive point charges, charge 1 of magnitude 3.45 110 and charge 2 of magnitude 1.60 nC , are separated by a distance of 40.0 cm . An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. V PartA What is the speed 125,131 of the electron when it is 10.0 cm from charge 1? Express your answer in meters per second. b View Available Hint(s) . This is the initial speed of the electron, not the final speed. No credit lost. Try again. m Previous Answers mules! Answer (gure 1) shows the potential energy of a proton (q = +5) and A proton is fired toward a lead nucleus from very lar away' How much initial kinetic energy does the proton need to reach a turning point 10 fm from the a lead nucleus ((1 2 +826) , The horizontal scale is in units of nucleus? femtameters, where 1 fm = 10'15 111' Express your answer with the appropriate units. ? K = MW - V Part B Figure 1 of 1 How much kinetic energy does the proton of part A have when it is 20 111 from the nucleus and moving toward it, before the collision? U (X 1 0'\" J ) Express your answer with the appropriate units. 4 a n o 7 2 K = Value Units Submit Re uest Answer 0 ,(fm) - 4i v PartA What is the electric potential at the point indicated with the dot in (gure 1)? Suppose that q = -2.0 nC. Express your answer with the appropriate units. Ell/\"4500? V = Value Units \"mm Figure 1 of 1 Provide Feedback Part A A flying hummingbird picks up charge as it moves through the air. This creates a potential near the bird. What is the "voltage of a hummingbird"? Assume that the bird acquires a charge of +160 pC, a typical value, and model the bird as a sphere of radius 3 cm. Express your answer with the appropriate units. ? V = Value Units Submit Request Answer Provide Feedback Next >