The highly inclined and backwards rotation of Triton supports the hypothesis that Triton is a Kuiper belt object captured by Neptune.
Answer the following statement true (T) or false (F)
True
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Astronomy's largest optical telescopes are ________.
A. refractors B. diffractors C. deflectors D. reflectors
The best electrically conducting elements are located ________ in the periodic table.
A. in the last two columns B. on the left side or in the transition regions C. in the middle columns D. in the first two rows E. randomly
A light ray passes from air through a thin plastic slab (n = 1.77) with parallel sides. If the ray in air makes an angle of 49° with the normal after leaving the slab, what is the angle of incidence for the ray in air as it impinges upon the other side of the slab?
a. 25° b. 49° c. 14° d. 28° e. 87°
A rocket ship is 74.0 m in length when measured before leaving the launching pad. What would its velocity be if a ground observer measured its length as 60.0 m while it is in flight? (c = 3.00 × 10^8 m/s)
a. 1.76 × 10^8 m/s c. 1.98 × 10^8 m/s b. 0.980 × 10^8 m/s d. 1.15 × 10^8 m/s