The rest mass of the electron is 0.511 MeV/c . In other words mock = 0.511 MeV for the electron. What is the total relativistic energy of an electron, if its speed is v = 0.837c? (in MeV) OA: 4.98x10-1 OB: 5.83x10-1 OC: 6.82x10-1 OD: 7.98x10-1 OE: 9.34x10-1 OF: 1.09 OG: 1.28 OH: 1.50 Submit Answer Tries 0/99 At what speed is the total relativistic energy of an electron equal to 5.69 MeV? (Give the speed in terms of the speed of the light with at least five significant figures.) OA: 0.99485 OB: 0.99513 OC: 0.99541 OD: 0.99555 OE: 0.99596 OF: 0.99609 OG: 0.99637 OH: 0.99707 Submit Answer Tries 0/99