The diurnal rotation of the stars refers to the
A) apparent rotation of the celestial sphere due to the rotation of the Earth.
B) movement of the stars across the sky during daytime hours.
C) rate of spin of stars in their formation stage.
D) particular constellations that are visible in different times of the year.
Answer: A
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A. 0.50 m/s B. 0.28 m/s C. 0.38 m/s D. 0.75 m/s E. 0.00 m/s
Suppose that an object is moving with constant acceleration. Which of the following is an accurate statement concerning its motion?
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The height of the ceiling in a typical home, apartment, or dorm room is closest to
A) 100 cm. B) 200 cm. C) 400 cm. D) 500 cm.
What is the slit spacing of a diffraction grating necessary so that 600-nm light will produce a first order principal maximum at 25.0° away from the centerline?
A) 2.01 ?m B) 1.42 ?m C) 3.12 ?m D) 5.44 ?m E) 4.12 ?m