Anders and Taisen release their snowballs from the same height and at the same time. Ander's is dropped while Taisen’s is thrown horizontally. Which one hits the ground first?
A. the "dropped" snowball
B. the "thrown" snowball
C. they hit at the same time
D. it depends on how hard Taisen threw
E. it depends on the initial height
C. they hit at the same time
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How would the inward migration of a Jovian-like planet in an extrasolar planetary system alter the probability of Life appearing?
A) it would improve chances since it would protect inner, Terrestrial-like planets from impacts B) it would improve chances slightly since some of the Terrestrial planets may become moons of the Jovian planet C) it would greatly decrease the chance since the orbits of the inner, Terrestrial-like planets would be disrupted D) it would make no difference at all
The lowest energy level of a hydrogen atom (n = 1) is called
a. the ground state. b. the potential state. c. the ionization state. d. none of these.
Instructions: On occasion, the notation 
will be a shorthand notation for 
.
If 
= [10 m, 30°] and 
= [25 m, 130°], what is the direction of the sum of these two vectors?
A. 17°
B. 73°
C. 107°
D. 163°
E. 100°
How deep is an impact crater compared to its width?
A) 1-10% B) 50-100% C) 30-40% D) 10-20% E) 100-200%