Speed and velocity are the same thing
Indicate whether the statement is true or false
FALSE
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On its icy surface, Uranus's satellite Ariel has smooth valleys with few craters. Other areas are rough with many craters. Based on this, it can be concluded that
a. valleys are young and the rough areas are old. b. the valleys are old and the rough areas are young. c. both valleys and rough areas are young. d. both valleys and rough areas are old.
Nuclear Binding Energy: A beryllium-8 nucleus at rest undergoes double alpha decay as follows:
The known atomic masses are:
What is the kinetic energy of each departing alpha particle? (1 u = 931.5 MeV/c2)
A. 46 keV B. 65 keV C. 92 keV D. 130 keV E. 180 keV
Pluto is classified as a dwarf planet because
A. it has not cleared its neighborhood. B. it is not spherical. C. it doesn't orbit the Sun. D. All of these choices are correct.
The 120°W longitude meridian is the center of the ______________ Standard Time zone in the United States
a. Pacific b. Mountain c. Eastern d. Central