Question

To practice Problem-Solving Strategy 21.1 Conservation of energy in charge interactions. An alpha particle (α), which is the same as a helium-4 nucleus, is momentarily at rest in a region of space occupied by an electric field. The particle then begins to move. Find the speed of the alpha particle after it has moved through a potential difference of −3.45×10−3 V . The charge and the mass of an alpha particle are qα = 3.20×10−19 C and mα = 6.68×10−27 kg , respectively. Which of the following quantities are unknown? Select all that apply. Select all that apply. the final speed of the alpha particle the value of the electric potential at the initial position of the alpha particle the charge of the alpha particle the difference in potential between the initial and final positions of the alpha particle the value of the electric potential at the final position of the alpha particle the mass of the alpha particle the initial speed of the alpha particle

Answer 1