The distance to Canopus is 96 pc. What is the parallax angle as observed from the Sun?
a. 0.01 degrees b. 0.01 arc minutes
c. 0.01 arc seconds d. 96 pc
c
Physics & Space Science
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The 26,000 year cycle that changes the poles and equinoxes is called
A) precession. B) the Earth's rotation. C) a retrograde loop. D) revolution. E) regression.
Physics & Space Science
Quarks come in what flavors?
a. up, down and strange b. charm, top and bottom c. red, green and blue d. all of the above
Physics & Space Science
As we grow older, the greatest hearing difficulty is with frequencies that are
A) low. B) mid-range. C) high.
Physics & Space Science
Water flows in a flexible tube of radius 1.5 cm at the floor level of a house. If the tube is joined to a second tube of smaller radius (1.2 cm), what is the speed of water in this smaller radius tube at a height of 7.2 m above the floor?
A. 8.9 m/s B. 4.5 m/s C. 13.9 m/s D. 11.1 m/s
Physics & Space Science