A bare helium nucleus has two positive charges and a mass of 6.64 x 10-27 kg. (a) Calculate its kinetic energy in joules at 2.60% of the speed of light. J (b) What is this in electron volts? ev (c) What voltage would be needed to obtain this energy? V Additional Materials Reading Submit Answer 1 Points] DETAILS OSCOLPHYS2016 19.2.WA.019.TUTORIAL. Two parallel conducting plates are separated by a distance d = 12.2 cm. Plate B, which is at a higher potential has a value of 620 V. The potential at x = 7.50 cm from the plate B is 60.9 V. See diagram below. (a) What is the potential of plate A? (b) What is the direction of the electric field lines between the plates? O toward the left O toward the right O upward O downward Additional Materials ReadingIn the diagram below, each division on the horizontal axis is 0.20 m while each division on the vertical axis is 1.5 V. What is the electric field in each of the regions specified below? Electric potential (V) 4.5 V 3.0 V 1.5 V 0.20 m 0.40 m 0.60 m Displacement (s) (a) from 0.0 m to 0.10 m V/m (b) from 0.10 m to 0.50 m V/m (c) from 0.50 m to 0.80 m V/m Additional Materials Reading -/1 Points] DETAILS OSCOLPHYS2016 19.3.WA.020. What are the sign and magnitude of a point charge that produces an electric potential of -3.56 V at a distance of 6.93 mm? Additional Materials Reading -/1 Points] DETAILS OSCOLPHYS2016 19.3.WA.029.TUTORIAL. A charge q1 = 2.92 UC is at a distance d = 1.23 m from a second charge q2 = -6.27 UC. 92 (a) Find the electric potential at a point A between the two charges that is d/4 from q1. Note that the location A in the diagram above is not to scale. (b) Find a point between the two charges on the horizontal line where the electric potential is zero. (Enter your answer as measured from q1.) Additional Materials(a) Find the electric potential difference VB - VA due to a point charge q1 = -2.84 nC that is 0.220 m from location A and 0.500 m from location B. (b) A charge q2 moving from B to A gains in kinetic energy. What is the sign of this charge? negative positive Additional Materials Reading /1 Points] DETAILS OSCOLPHYS2016 19.3.WA.031. Four charges of equal magnitude q = 2.09 JC are situated as shown in the diagram below. If d = 0.86 m, find the electric potential at location A due to the four charges. d - 9 -9 d A d 2d