20. Simultaneity implies that a. two events will be simultaneously occurred in e
ID: 1581831 • Letter: 2
Question
20. Simultaneity implies that a. two events will be simultaneously occurred in each frame of reference. b. two events won't be simultaneous in different frames of reference. c. two events that are simultaneous in one frame of reference need not be simultaneous in a frame moving relative to the first frame. d. two events that occur at the same time are simultaneous e. electrons can produce light of a different frequency if they decay simultaneously 21. The Bohr atom modeled the atom like planets orbiting the Sun. The flaw in his model was a. he couldn't explain the emission when electrons decayed from one orbit to another. b. the model only accounted for emission and couldn't explain excitation. c. the charge on the electron didn't match the orbits proposed. d. the electrons orbiting in the model would emit radiation continuously and should spiral into the nucleus. e. that alpha particles would be deflected by the electrons. What is the charge on alpha rays, beta rays, and gamma rays? a. Alpha rays b. Beta rays c. Gamma rays 22. Positive Negative None Positive Negative None Positive Negative None 23. In a nuclear power plant, the nuclear reactor is used to a. generate electricity using the electrons emitted by nuclear reactions. b. create heat water and make steam to power turbines that drive the generators. c. heat water in high pressure vessels that then boils water in a heat exchanger that then powers turbines that drive the generators. that steam to drive the generators is created. complicated than this. d. generate neutrons that is captured in the water, heating it to the boiling point so e. None of these explanations is correct. Nuclear power plants are moreExplanation / Answer
20.
Simultaneity implies that two events that are simultaneous in one frame need not be simultaneous in a frame moving relative to first frame.
21.
d. The electrons orbiting in the model would emit radiation continuously and should spiral into the nucleus.
22.
Alpha rays: positive
Beta rays: negative
Gamma rays: None
23.
b. Create heat water and make steam to power turbines that drive the generators.
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