Which of the following forms of light can be observed with telescopes at sea level?
A. X rays
B. ultraviolet light
C. visible light
D. infrared light
E. radio waves
Answer:
C. visible light
E. radio waves
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The Virgo cluster
a. is the galactic cluster that contains the Milky Way. b. is the oldest known cluster of galaxies. c. is located at the center of the universe. d. contains mostly spiral galaxies and very few elliptical galaxies. e. is a rich cluster and the closest cluster of galaxies outside of the Local Group.
Wave Characteristics: For a certain electromagnetic wave in free space, at one instant the electric field vector points in the +z direction while the magnetic field vector points in the +x direction, as shown in the figure. In what direction is this wave traveling?
A. +x B. -x C. +y D. -y E. +z
As you’ve learned from Part B, hydrogen and helium gas never condense under conditions found in the solar nebula. The remaining three categories of material in the solar nebula are shown again here. Rank these materials from left to right based on the distance from the Sun at which they could condense into a solid in the solar nebula, from farthest to closest.
What will be an ideal response?
The sensitive dependence upon initial conditions of the evolution of some physical systems is a feature of __________
Fill in the blank(s) with correct word