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Author Question: An electrical signal is delivered to a transducer that changes the signal into a thump on a rock. As ... (Read 40 times)

jazziefee

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on: Jul 16, 2018
An electrical signal is delivered to a transducer that changes the signal into a thump on a rock. As the wave travels through the rock, an electric sensor records the signal's travel time. What does this experiment help scientists to calculate?
 
  A) the force of a wave
  B) the magnitude of a wave
  C) the effect of a medium on wave travel
  D) the velocity of a wave

Question 2

Which two elements form most of Earth's core?
 
  A) iron and nickel
  B) iron and peridotite
  C) iron and sulfur
  D) iron and silicon


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katieost

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: A


jazziefee

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Reply 2 on: Jul 16, 2018
Excellent

patma1981

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Reply 3 on: Yesterday
Wow, this really help

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