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7. 0/1 points Previous Answers SerCP11 16.2.P.023. My Notes Ask Your Teacher In Rutherford's famous scattering experiments that led to the planetary model of the atom, alpha particles (having charges of +2e and masses of 6.64 x 10-27 kg) were fired toward a gold nucleus with charge +79e. An alpha particle, initially very far from the gold nucleus, is fired at 2.71 x 10 m/s directly toward the nucleus, as in the figure below. How close does the alpha particle get to the gold nucleus before turning around? Assume the gold nucleus remains stationary. Enter a number differs from the correct answer by more than 100% m Need Help? Read It Submit Answer Practice Another Version 8. -12 points SerCP11 16.2.P.024. My Notes Ask Your Teacher Four point charges each having charge Q are located at the corners of a square having sides of length a. (0) Find a symbolic expression for the total electric potential at the center of the square due to the four charges (Use any variable or symbol stated above along with the following as necessary: k.) Vtotal (b) Find a symbolic expression for the work required to bring a nith charge p from Infinity to the center of the square (Use any variable or symbol stated above along with the following as necessary: k.) W Need Help? Read It