Which statement below about the distance between the starting and ending positions and the displacement between the starting and ending positions is correct?
A)
The distance between the starting and ending positions is twice the magnitude of the displacement between the starting and ending positions.
B)
The distance between the starting and ending positions is equal to the magnitude of the displacement between the starting and ending positions.
C)
The distance between the starting and ending positions is the negative of the magnitude of the displacement between the starting and ending positions.
D)
The distance between the starting and ending positions is greater than the magnitude of the displacement between the starting and ending positions.
E)
The distance between the starting and ending positions is less than the magnitude of the displacement between the starting and ending positions.
Question 2
The binding energy of a molecule
A)
is the negative of the activation energy.
B)
cannot be negative if a molecule is formed.
C)
must be negative if a molecule is formed.
D)
can be negative if a molecule is formed.
E)
must be positive if the molecule is formed.
Species richness decreases with distance from the source pool.
Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period
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