_____ is the field of study focused on searches for life and possible habitats for such life on other worlds
A) Anthropology
B) Sociology
C) Ecology
D) Astrobiology
D
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Matter Waves: What is the wavelength of the matter wave associated with an electron moving with a speed of 2.5 × 107 m/s? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)
A. 29 pm B. 35 pm C. 47 pm D. 53 pm
The use of grids for responsive web design layout ensures pages will adapt to different screen sizes.
Answer the following statement true (T) or false (F)
The Sun has a continuous visual spectrum with dark absorption lines. The continuous spectrum is produced by the ____________ layer while the dark absorption lines are produced by ____________layers
a. inner chromosphere; outer photosphere b. inner photosphere; outer chromosphere c. inner chromosphere; outer corona d. inner corona, outer chromosphere
Because of their mass, the threshold temperature for electrons is:
A) higher than that of neutrons. B) lower than that of protons. C) higher than that of protons. D) lower than that of hydrogen. E) higher than that of hydrogen.