In Part A, you found that Planet Z should not have seasons. What single change to Planet Z's characteristics would cause it to have seasons?
a. a larger axis tilt
b. a smaller size=
c. a faster rotation rate
d. a greater distance from its star
Answer : a. a larger axis tilt
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Light passes from a material with index of refraction 1.1 into one with index of refraction 1.5 after being incident at a non-normal angle (?inc ? 0). Compared to the incident ray, the refracted ray will
1.be unaffected. 2.bend towards the normal. 3.follow the normal. 4.bend away from the normal.
What are the two primary components of the Ptolemaic Universe model?
What will be an ideal response?
An astronomer named _______________ used globular clusters to locate the center of the galaxy. (enter last name only)
Fill in the blank(s) with correct word
The magnetic force between parallel wires is used by the National Bureau of Standards to define the
A) Newton. B) Tesla. C) square-meter. D) Ampere. E) Coulomb.