(a) What is the ratio of the intensity of an earthquake wave as it passes a poin

Content Type

User Generated

User

shsh

Subject

Science

Description

(a) What is the ratio of the intensity of an earthquake wave as it passes a point 20 km from the source to the intensity as it passes a point 15 km from the source?

(b) What is the ratio of the amplitude of an earthquake wave as it passes a point 20 km from the source to the amplitude as it passes a point 15 km from the source?

User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

If we assume the energy spreads out equally in all directions, the intensity obeys the inverse square law.
(a) Distance increases by a factor of 20/15 = 1.33
Intensity reduces by 1.33² = 1.77
Ratio of intensities is 1/1.77 =0.56
(b) The intensity is proportional to amplitude squared, so amplitude is proportional to the square root of intensity. √1.77 = 1.33
Ratio of amplitudes is 1/1.33

Completion Status:

100%

Review

Review

Anonymous

Super useful! Studypool never disappoints.

Studypool

4.7

Trustpilot

4.5

Sitejabber

4.4

24/7 Homework Help

Stuck on a homework question? Our verified tutors can answer all questions, from basic math to advanced rocket science!

Walden University The Obstetrics and Gynecology Unit Lab Report

Scenario: You’ve just returned to the hospital for your final day of touring units. Today, you’ll explore the ne ...

Walden University The Obstetrics and Gynecology Unit Lab Report

Scenario: You’ve just returned to the hospital for your final day of touring units. Today, you’ll explore the newly-renovated Obstetrics and Gynecology Unit. As you tour, you’ll identify structures of the human reproductive system and refresh your knowledge of common STI symptoms and treatment. Later in the day, you’ll advise a family member regarding some questions they have about inherited genetic disorders.

3 pages

Volkswagen Emissions 04

In September 2015, Volkswagen was accused of misleading on the emissions of its diesel vehicles. The relevant body (the Un ...

Volkswagen Emissions 04

In September 2015, Volkswagen was accused of misleading on the emissions of its diesel vehicles. The relevant body (the United States Environmental ...

CCSD Biology Infectious Agents and Oncogenes Paper

In this week's discussion board, you are expected to extensively research(read chapter 6 of - The Molecular Basis of Cance ...

CCSD Biology Infectious Agents and Oncogenes Paper

In this week's discussion board, you are expected to extensively research(read chapter 6 of - The Molecular Basis of Cancer textbook by Mendelsohn et al) and write on the topic – The Role of Infectious Agents in Oncogenesis. You are required to use this outline as a guide (you should not restrict yourself to it; - Introduction and history of infectious agents and oncogenesis - Identify at least five (5) infectious agents that play a role in oncogenesis - For each infectious agent, discuss the following; What cancer (s) is it associated with its development? What is(are) the oncogenic factor(s) in the infectious agent? What is(are) the mechanism(s) of oncogenesis - What are your suggestions for prevention, control and or treatment of any of these cancers?

Stratford University Chronic Fatigue Syndrome Discussion

Unexplained muscle pain along with other symptoms is often diagnosed as Chronic Fatigue Syndrome. What is the cause and w ...

Stratford University Chronic Fatigue Syndrome Discussion

Unexplained muscle pain along with other symptoms is often diagnosed as Chronic Fatigue Syndrome. What is the cause and what can be done about it? Research some alternative therapies and support why they may or may not be safe and effective.Please make sure that your initial post is a minimum of 300 words and post by Wednesday. 2 replies to two different student threads are also required with a 100 word count minimum. APA reference and in-text citations at required for all outside information placed in your discussion thread

5 pages

Musculoskeletal System Assessment..final

Musculoskeletal System Assessment: Documentation of problem-based assessment of the CC: “I have pain in my left leg, esp ...

Musculoskeletal System Assessment..final

Musculoskeletal System Assessment: Documentation of problem-based assessment of the CC: “I have pain in my left leg, especially in the knee."

Concorde Career College Structures for Vitamins A D Questions

Look up the structures for vitamins A, D, and E. Compare them to a water-soluble vitamin, such as vitamin C. Given the str ...

Concorde Career College Structures for Vitamins A D Questions

Look up the structures for vitamins A, D, and E. Compare them to a water-soluble vitamin, such as vitamin C. Given the structures for A, D, and E, why would these vitamins be attracted to lipids? Why does vitamin C prefer a hydrophilic environment? Finally, list one side effect from taking too much vitamin D for too long a period of time.

Similar Content

CHEM 108 UC Davis Chemistry Exam Questions

finish the questions and make sure you are all correct, remember show the process....

Enzyme Lab Report

1. You will need to complete an examz of roughly 14 question in which I will provide a practice examz that will identical ...

differentiate between diffusion and osmosis

differentiate between diffusion and osmosis...

CC Spinal Nerve Upper & Lower Limb Plexus & Branching Nerve Pattern Discussion

Please find the questions from the attached pictures.For question#1, please fill in the blanks after the arrows#2. draw ma...

Transcriptome of Acute Myelogenous Leukemia Cells Question

Which of the following would be the MOST useful drug for treating acute myelogenous leukemia? A drug that makes the proteo...

ABU Biology Cellular Respiration and Communication Questions

Answer the following questions on Respiration and Cell Communication. 1. Compare and contrast aerobic and anaerobic respir...

Multiple Sceriois.edited

The effect of the demyelization on the nerves of an individual who has Multiple In the event that the neurons are myelinat...

Environmental Science Discussion Response

The perspectives that you offer in this discussion are pretty accurate. According to Garrett Hardin, the commons are the r...

The reflect does no longer reverse pictures from left to proper, it reverses them from the front to back relative to the t...

Related Tags

research paper physics problems long string metabolic rate carnot engine gravitational force carnot engine momentum conservation conservation of mechanical energy Angular acceleration Calorimeter and stirrer stern-gerlach

Homework help

Our tutors provide high quality explanations & answers.

Post question

Walden University The Obstetrics and Gynecology Unit Lab Report

Scenario: You’ve just returned to the hospital for your final day of touring units. Today, you’ll explore the ne ...

Walden University The Obstetrics and Gynecology Unit Lab Report

Scenario: You’ve just returned to the hospital for your final day of touring units. Today, you’ll explore the newly-renovated Obstetrics and Gynecology Unit. As you tour, you’ll identify structures of the human reproductive system and refresh your knowledge of common STI symptoms and treatment. Later in the day, you’ll advise a family member regarding some questions they have about inherited genetic disorders.

3 pages

Volkswagen Emissions 04

In September 2015, Volkswagen was accused of misleading on the emissions of its diesel vehicles. The relevant body (the Un ...

Volkswagen Emissions 04

In September 2015, Volkswagen was accused of misleading on the emissions of its diesel vehicles. The relevant body (the United States Environmental ...

CCSD Biology Infectious Agents and Oncogenes Paper

In this week's discussion board, you are expected to extensively research(read chapter 6 of - The Molecular Basis of Cance ...

CCSD Biology Infectious Agents and Oncogenes Paper

In this week's discussion board, you are expected to extensively research(read chapter 6 of - The Molecular Basis of Cancer textbook by Mendelsohn et al) and write on the topic – The Role of Infectious Agents in Oncogenesis. You are required to use this outline as a guide (you should not restrict yourself to it; - Introduction and history of infectious agents and oncogenesis - Identify at least five (5) infectious agents that play a role in oncogenesis - For each infectious agent, discuss the following; What cancer (s) is it associated with its development? What is(are) the oncogenic factor(s) in the infectious agent? What is(are) the mechanism(s) of oncogenesis - What are your suggestions for prevention, control and or treatment of any of these cancers?

Stratford University Chronic Fatigue Syndrome Discussion

Unexplained muscle pain along with other symptoms is often diagnosed as Chronic Fatigue Syndrome. What is the cause and w ...

Stratford University Chronic Fatigue Syndrome Discussion

Unexplained muscle pain along with other symptoms is often diagnosed as Chronic Fatigue Syndrome. What is the cause and what can be done about it? Research some alternative therapies and support why they may or may not be safe and effective.Please make sure that your initial post is a minimum of 300 words and post by Wednesday. 2 replies to two different student threads are also required with a 100 word count minimum. APA reference and in-text citations at required for all outside information placed in your discussion thread

5 pages

Musculoskeletal System Assessment..final

Musculoskeletal System Assessment: Documentation of problem-based assessment of the CC: “I have pain in my left leg, esp ...

Musculoskeletal System Assessment..final

Musculoskeletal System Assessment: Documentation of problem-based assessment of the CC: “I have pain in my left leg, especially in the knee."

Concorde Career College Structures for Vitamins A D Questions

Look up the structures for vitamins A, D, and E. Compare them to a water-soluble vitamin, such as vitamin C. Given the str ...

Concorde Career College Structures for Vitamins A D Questions

Look up the structures for vitamins A, D, and E. Compare them to a water-soluble vitamin, such as vitamin C. Given the structures for A, D, and E, why would these vitamins be attracted to lipids? Why does vitamin C prefer a hydrophilic environment? Finally, list one side effect from taking too much vitamin D for too long a period of time.