Will our Sun ever undergo a white dwarf supernova explosion? Why or why not?
A) No, because the Sun's core will never be hot enough to fuse carbon and other heavier elements into iron.
B) Yes, about a million years after it becomes a white dwarf.
C) Yes, right at the end of its double-shell burning stage of life.
D) No, because it is not orbited by another star.
D
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On the planet Jupiter, a dropped object picks up a speed of 20 m/sec in one second. How fast will it be going at the end of 3 seconds of fall, neglecting "air" resistance on Jupiter?
A) 40 m/sec B) 80 m/sec C) 60 m/sec D) 180 m/sec E) 20 m/sec
Refracting Telescope: The length of a telescope is 1.60 m and it has a magnification of 60.0. What is the focal length of the eyepiece?
A. 2.62 cm B. 60.0 cm C. 100 cm D. 1.16 cm E. 96.0 cm
When light passes at an angle to the normal from one material into another material in which its speed is higher,
a. it is bent toward the normal to the surface. b. it always lies along the normal to the surface. c. it is unaffected. d. it is bent away from the normal to the surface.
Determine the energy stored in the 60-?F capacitor.
A. 2.4 mJ B. 3.0 mJ C. 3.6 mJ D. 4.3 mJ E. 6.0 mJ