Question

*) (15 p) We considera muclear reactor of power output P-1000 Megowott 1000 million wot elect, can with Plutonium. Bifueled, initially with 1000 kg of Plutonium. The nuclear teslim 239 question is made of Plutonium nuclei, each consisting in 94 protons and 239-94145 euro the symbol For thermodynamical reasons, only 1.3 in the form of heat produced by the reactor, can be converted into electricity. How much mass deficit should the nucle fuel of concer delicates if the reactor is operated through a period of 2 years. You are supposed to use Einstein's relationship Ac Am (where is the velocity of Aght in vacuum Le about 300 000 km's Note further that the reactor power, by definition, is given by AE/RE. Make sure that you use coherents b) 40p) How much aus deficit between the reactants (CO2) and the reaction products (CO), all wished at rest would delineate a coal (C) thermal plant of the same capacity, working under the same thermomical come through the same period of 2 years of operation, but which needs to burn about 3 millions coal per year?

Answer 1

(1) Ballistic Pendulum mass of bullet 5m= 159 moss of Pendulum -3M = 7kg ch=5 cm initial velocity of wood +bullet = V (a) Using conservation of energy Į (MAM) v² = (mm) og v=52gh using conservation of linear h _ U) momentum mu,= (tm) v nu, U put value from eq. (1) Mam) Tigh I (initial = (M+mX Tigh) velocity be belet) (7 + 0.015) (2x9.840-05) 0.015) (b) V = (462.97 m/s