ABC
1
Question 34
A source of waves and an observer are both initially stationary. The...
ABC
1
Question 34
A source of waves and an observer are both initially stationary. The observer will detect a steadily increasing frequency
if
А
the source accelerates away from him.
B
the source moves away from him at a constant speed.
с
he accelerates toward the source.
D
he moves toward the source at a constant speed.
Answers: 2
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The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions
Answers: 3
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The material that keeps its new shape after it is stretched is called?
Answers: 1
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Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost
Answers: 1
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