In size, from largest to smallest, the correct order for the Galilean moons is:
A) Callisto, Ganymede, Europa, Io.
B) Ganymede, Callisto, Io, Europa.
C) Io, Europa, Callisto, Ganymede.
D) Europa, Ganymede, Io, Callisto.
E) Ganymede, Callisto, Europa, Io.
B
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What statement below best describes the refraction of light?
a. The absorption of light as it travels through a dense, transparent material. b. The spreading out of white light according to wavelength. c. The change in direction of a light ray as it passes to a medium of different optical density. d. The change in direction of a ray of light as it reflects off a surface.
As a result of friction between internal parts of an isolated system
A. the total mechanical energy of the system increases. B. the total mechanical energy of the system decreases. C. the total mechanical energy of the system remains the same. D. the potential energy of the system increases but the kinetic energy remains the same. E. the kinetic energy of the system increases but the potential energy of the system remains the same.
The angular momentum of a rotating body is constant when the net ________ on the body is zero.
Fill in the blank(s) with the appropriate word(s).
Give several observations supporting the idea that the high redshifts of quasars really do imply great distances
What will be an ideal response?