This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An electrical signal is delivered to a transducer that changes the signal into a thump on a rock. As ... (Read 60 times)

jazziefee

  • Hero Member
  • *****
  • Posts: 505
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

katieost

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: A


jazziefee

  • Member
  • Posts: 505
Reply 2 on: Jul 16, 2018
Gracias!

Liamb2179

  • Member
  • Posts: 365
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Rock and Plastic Rock and Plastic
Measuring Electrical Charge Measuring Electrical Charge
Electrical charge of the inner and outer regions of nerve cells Electrical charge of the inner and outer regions of nerve cells
Abdominal thrusts are delivered with a firm thrust into the patient’s abdomen with an upward ... Abdominal thrusts are delivered with a firm thrust into the patient’s abdomen with an upward ...
A typical waveform from a knock sensor during a spark knock event. This signal is sent to the ... A typical waveform from a knock sensor during a spark knock event. This signal is sent to the ...
Granite and Granitic Rock Granite and Granitic Rock
Video: Haustral churning, Gastrocolic reflex and mass peristalsis & Defecation

For a complete list of videos, visit our video library