You live at a latitude of 73° N. What is the angle between the northern horizon and the north celestial pole?
a. 73°
b. 27°
c. 17°
d. 23 °
e. 5°
A
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Spicules
a. are found in the photosphere. b. are magnetic disturbances that push large loops of material off the solar surface. c. are responsible for twisting the solar magnetic field and causing the sunspot cycle. d. appear in the corona near the north and south poles of the Sun during a total solar eclipse. e. are visible in filtergrams of the solar chromosphere.
Are the ring particles of Uranus primordial? Why or why not?
What will be an ideal response?
Exhibit 16-1
A graph of position versus time for an object oscillating at the free end of a horizontal spring is shown below.
?
?
Use this exhibit to answer the following question(s).
Refer to Exhibit 16-1. The point at which the object has zero velocity and negative acceleration is
A. A B. B C. C D. D E. E
A single-slit diffraction pattern is formed on a distant screen. Assuming the angles involved are small, by what factor will the width of the central bright spot on the screen change if the slit width is doubled?
A) It will be cut to one-quarter its original size. B) It will be cut in half. C) It will double. D) It will become four times as large. E) It will become eight times as large.