Kepler's first law of planetary motion is known as the law of ______________ paths
Fill in the blank(s) with correct word
elliptical
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Graphical Analysis: If the position versus time graph of an object is a horizontal line, the object is
A. moving with constant non-zero speed. B. moving with constant non-zero acceleration. C. at rest. D. moving with increasing speed.
If a length of lucite that is being used as a light pipe gets wet, the critical angle
A) decreases. B) is unaffected. C) doubles. D) is meaningless since lucite cannot be used as a light pipe. E) increases.
Escape Speed: Planet W-70 has a radius of 2.48 × 107 m and an escape velocity of 23,300 m/s. What is the mass of W-70? (G = 6.67 × 10-11 N ? m2/kg2)
A. 1.01 × 1026 kg B. 2.02 × 1026 kg C. 3.03 × 1026 kg D. 4.04 × 1026 kg E. 5.05 × 1026 kg
Titan is an interesting moon because:
A) beneath its clouds, Titan may be Earth-like, with liquid water. B) the Huygens rover has sent back images of sedimentary rocks there. C) it has a rich atmosphere that may resemble that of the early Earth. D) it is known to have ice volcanism on its surface. E) All of the above.