Dark matter must be ____
a. baryonic
b. non-baryonic
c. neutral
d. WIMPs
e. isochronic
b
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Which of these theories seems to best explain the Moon's origin?
A) Impact Theory B) Capture Theory C) Coformation Theory D) Fission Theory E) Fusion Theory
Internal forces cannot change the total momentum of a system
Indicate whether the statement is true or false
A system consisting of a quantity of ideal gas has the two isotherms shown. The system, initially at state C, can be taken along path C-A to final state A or along path C-B to state B
Which of the following is true?
The surface of Comet 67P/CG as detected by the Rosetta mission is best described as
A) smooth with parallel striations. B) smooth with many hilly areas. C) rough with cracks and crevices. D) rough with many craters.