If a nuclear fission reactor produces an average power of 1.0 GW over the course of a year, what mass of 235U is used up for a 365-day year if 200 MeV are released per fission reaction?
(1 eV = 1.60 × 10-19 J, mneutron ? mproton = 1.67 × 10-27 kg)
A) 0.35 kg
B) 1.75 kg
C) 390 kg
D) 1.1 × 108 kg
E) 3.3 × 108 kg
C
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(a) 3003 (b) 5052 (c) 6061 (d) 7075
If the plane of the Earth's equator were not tilted with respect to the ecliptic plane
a. the daylight period of Earth would be the same year-round. b. there would be no seasonal changes. c. Earth's poles would not experience six month long nights. d. All of the above
Define an elastic collision in terms of conservation of momentum and energy
What will be an ideal response?
A hole is punched in a full milk carton, 10 cm below the top. What is the initial velocity of outflow?
A. 1.4 m/s B. 2.0 m/s C. 2.8 m/s D. 3.9 m/s E. 4.2 m/s