The gravitational field around close binary stars is defined by _______________ lobes
Fill in the blank(s) with correct word
Roche
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Which of the following is not a possible energy source for a steam-electric generating plant?
A) fossil fuels B) wood C) solar energy D) fissionable material such as uranium E) All of the above are possible energy sources.
Radioactive Decay: The decay constant of a radioactive nuclide is 4.6 × 10-3 s-1. What is the half-life of this isotope, in minutes?
A. 2.5 min B. 3.6 min C. 3.1 min D. 1.4 min E. 2.0 min
How many octaves exist between 100 hertz and 1600 hertz?
A) 4 B) 5 C) 6 D) 7 E) 8
As a spaceship's velocity gets closer to the speed of light
A) its length will increase and its clock will run more slowly. B) its length will decrease and its clock will run faster. C) its length will increase and its clock will run faster. D) its length will decrease and its clock will run more slowly. E) None of these will happen.