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

Author Question: How do we know that Earth is inhomogeneous? What will be an ideal ... (Read 25 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
on: Jul 16, 2018
How do we know that Earth is inhomogeneous?
 
  What will be an ideal response?

Question 2

Which type of wave arrives first at an earthquake recording station? Why do the waves not arrive at the same time?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

carolinefletcherr

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 16, 2018
Answer to Question 1

Oceanic crust is different than continental crust. The density of the entire Earth is 5.5 g/cm3 but typical mantle only has a density of 3.2 g/cm3.

Answer to Question 2

The P waves arrive first, then the S waves, then finally the surface waves. Wave velocities reflect compositional differences in materials.


jeatrice

  • Member
  • Posts: 543
Reply 2 on: Jul 16, 2018
:D TYSM

momolu

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer
Foundations of Earth Science, 7th Edition Foundations of Earth Science, 7th Edition
A spaceship leaves Earth at a steady forward speed of 70% the speed of light. How fast relative ... A spaceship leaves Earth at a steady forward speed of 70% the speed of light. How fast relative ...
Earth 200 Million Years Ago Earth 200 Million Years Ago
Earth day kids Earth day kids
Earth’s Early Atmosphere Earth’s Early Atmosphere
Video: SNP Polymorphysim Microarray Chip - How to Test a Person's DNA

For a complete list of videos, visit our video library