The kinetic energy of the free electron at the point of collision is higher if the atom is closer to the source of electrons
A. True
B. False
The only way to emit IR photons is if there are empty electronic energy levels really close to the ground state (lowest energy level).
A. True
B. False
When atomic electrons are excited to a higher level, they always return to their lowest energy level by jumping down one level at a time.
A. True
B. False
Answers: 1
Physics, 22.06.2019 05:30
Blank liquids and gases exert a buoyant force on objects placed in them
Answers: 3
Physics, 22.06.2019 10:00
How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.
Answers: 1
Physics, 22.06.2019 12:00
In an experiment, how can i change human errors? be specific.
Answers: 1
Physics, 22.06.2019 16:00
Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.
Answers: 1
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