Explore-Explain Activity 1: Electric Potential Directions: Solve the following problems. Identify the given quantities, required quantities, and equation used. Show B . complete solution then box your final answer. Use the answer 2 cm sheet provided. 2: @ 15nc 1. Two charges Q,=+5nC and Q.=-7nC are separated by 8 cm. 6 cm Calculate the electric potential at point A. Refer to the A figure to the right. 2. A research Van de Graaf generator has a 2.50 mm diameter 21=-7DC sphere with a charge of 6.00 pC on it. A. What is the potential near its surface? B. At what distance from its center is the potential 1.50 MV? Activity 2: Electric Potential Energy Directions: Solve the following problems. Identify the given quantities, required quantities, and equation used. Show complete solution then box your final answer Use the answer sheet 1. Two-point charges Q: = 4.5 pC and Q = 8.5 pC are initially very far apart. They are then brought together, with a final separation of 3.5 mm. How much work does it take to bring them together? 2. An electron is accelerated from rest through a potential difference of 15V. What is the change in electric potential energy of the electron? 3. In nuclear fission, a nucleus splits roughly in half. A. What is the potential 4.00 x 10.: m from a fragment that has 50 protons in it? (p=+1.602x10.: C) B. What is the potential energy of a similarly charged fragment at this distance