What causes the change of the constellations with the seasons?
A. the cycle of lunar phases
B. This is merely an illusion caused as the length of the day changes.
C. It is caused as the constellations move amongst themselves.
D. It is caused by Earth's motion around the Sun.
Answer: D
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Imagine we have a planet identical to Jupiter around another star, with the exception that its orbit is much closer. How would its density compare to Jupiter?
A) it would be slightly higher B) it would be much higher C) it would be lower D) it would be the same
A laser can be used for very accurate measurements of distances between objects
a. True b. False Indicate whether the statement is true or false
A 2000 kg car is traveling on a banked curved icy road. The road is banked at an angle of 12.0 degrees and has a radius of curvature of 500 m. The velocity of the car necessary to travel on the icy road without sliding is
A. 32.3 m/s. B. 40.5 m/s. C. 42.8 m/s. D. 49.5 m/s. E. 50.2 m/s.
One star is three times further away than another. The parallax angle of the more distant star is:
A. nine times larger than that of the nearer star B. three times larger than that of the nearer star C. the same as that of the nearer star D. three times smaller than that of the nearer star E. nine times smaller than that of the nearer star