How is right ascension similar to longitude on Earth?
What will be an ideal response?
Both measure positions east or west from a fixed point; Greenwich on Earth, the vernal equinox in the sky.
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A heavy ball hangs by a string, with a second string attached to its bottom (Figure 1.7 in your text). A slow pull on the bottom string breaks the
A) top string. B) bottom string. C) top or bottom string equally likely. D) none of the above
Modern day living stromatolites which resemble ancient stromatolites very closely have been found in
A) the Yucatan peninsula, Mexico B) South West Greenland C) Western Australia D) Yellowstone National Park, U.S.A.
If an object is placed at the center of curvature of concave mirror, the image formed by the mirror is located
A) out beyond the center of curvature. B) at the center of curvature. C) between the center of curvature and the focal point. D) at the focal point. E) at infinity.
____ pushed gas and dust particles out of the solar nebula by the light from the sun
a. Radiation pressure b. Outgassing c. Condensation d. Accretion e. Differentiation