The Sun's location in the Milky Way Galaxy is
A) very near the galactic center.
B) in the halo of the galaxy, about 28,000 light-years above the galactic disk.
C) at the very outer edge of the galactic disk.
D) in the galactic disk, roughly halfway between the center and the outer edge of the disk.
D
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Significant Figures: Add 1299 g and 45.1 kg and express your answer in milligrams (mg) to the correct number of significant figures.
A. 4.64 × 107 mg B. 4.64 × 104 mg C. 4.64 × 105 mg D. 4.64 × 106 mg
Which of the following cannot be determined from the spectrum of a star?
a. chemical composition b. surface temperature c. radial (along line of sight) velocity d. tangential (perpendicular to line of sight) velocity e. Both c and d
Tornadoes are rapidly rotating winds that blow counterclockwise around a small area of intense
A) high pressure. B) low pressure.
The spectra of the youngest stars show the most heavy elements present
Indicate whether the statement is true or false