Number 19 is frequency and not sure which question you asked!!!??
Answer:
Force exerted by the air on the propellers = 46000 - 9200
= 36800 N
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Longitudinal waves transfer energy parallel to the direction of the wave motion
Answer:
Nucleus And electron cloud
Explanation:
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Answer:
law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time.
