The atoms that make up a newborn baby were made
1) in the mother's womb,
2) from the food that the mother ate,
3) in the ancient stars,
While all atoms heavier than copper were manufactured by processes
4) photosynthesis.
5) atomic fabrication.
6) supernova explosions.
7) radioactivity.
8) none of these.
Answer: 3, 6
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Using 0.0200 mol of an ideal monatomic gas, an isochoric process from A (230 kPa, 1.00 L) to B (98 kPa, 1.00 L) results in what change in internal energy?
A. -200 J B. +200 J C. -375 J D. +375 J
A. Bulb A glows but bulb B goes out. B. Bulb B glows but bulb A goes out. C. Both bulbs continue to glow. D. Both bulbs go out. E. One needs more information to answer.
Your weight is
A) another word for your mass. B) the gravitational attraction between you and Earth. C) a property of mechanical equilibrium. D) the same in all locations.
Calculate the energy (in kW?h) given off if five kg of plutonium-239 undergoes complete fission. The energy released per fission is 200 MeV. (1 MeV = 1.6 × 10^?13 J)
a. 1.1E+11 kW?h b. 6.4E+12 kW?h c. 1.6E+16 kW?h d. 1.1E+8 kW?h e. 5.4E+9 kW?h