The mass of a galaxy can be determined from its _______________ curve
Fill in the blank(s) with correct word
rotation
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V-shaped valleys are
A) "old-age" valleys. B) formed by glaciers. C) of depositional origin. D) common in mountainous regions.
In the first law of thermodynamics, Q is the heat gained by the system, that is, Q is positive if the system gains heat
Indicate whether the statement is true or false
Electrons orbiting the nucleus of an atom are grouped into energy bands known as
a. tracks. b. slots. c. shells. d. tunnels.
Work-Energy Theorem: On an alien planet, an object moving at 4.0 m/s on the horizontal ground comes to rest after traveling a distance of 10 m. If the coefficient of kinetic friction between the object and the surface is 0.20, what is the value of g on that planet?
A. 4.0 m/s2 B. 6.0 m/s2 C. 8.0 m/s2 D. 10 m/s2 E. 12 m/s2