What defines the habitable zone around a star?
A) the region around a star where rocky planets form
B) the region around a star where humans can survive
C) the region around a star where liquid water can potentially exist on planetary surfaces
D) the region around a star where the ultraviolet radiation does not destroy organisms on a planetary surface
E) the region around a star where life exists
C
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Constellation names are from _____ translated into _______, the language of science in Europe to the 19th century
a. Greek; Latin b. Latin; Greek c. Latin; Arabic d. Greek; English e. Greek; Italian
The slow ________ of Mercury was first determined using radar signals sent from Earth
Fill in the blank(s) with correct word
In space there is nothing for the rocket to "push against" so how does it accelerate?
What will be an ideal response?
A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x = 5.0 sin (?t + ?/3). The velocity (in m/s) of the body at t = 1.0 s is
a. +7.9. b. ?7.9. c. ?14. d. +14. e. ?5.0.