When an electron drops from a higher energy level to a lower one, energy is emitted. In comparison, how much energy is required to reverse the process, going from the lower level to the higher level?
A) less energy
B) the same energy
C) more energy
Question 2
A roller coaster car is on a track that forms a circular loop in the vertical plane. If the car is to just maintain contact with track at the top of the loop, what is the minimum value for its centripetal acceleration at this point?
A) g downward
B) 0.5g downward
C) 2g downward
D) g upward
E) 2g upward
Bones of the lower extremity.
The primate dental formula illustrated for (a) the lower dentition of an Old World monkey and (b) th
The limbic system is located within the higher brain, or cerebrum.
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Color-enhanced electron micrograph of a DNA replication bubble and replication forks