Monday

July 28, 2014

July 28, 2014

Number of results: 26,791

**science**

explain how an magnitude of 8.0 earthquake could be classified as a low intensity
*February 13, 2011 by Anonymous*

**science**

how does a magnitude-8.0 earthquake could be classified as a low-intensity earthquake? LAST SCIENCE QUESTION!
*April 1, 2009 by Sara*

**Pre-Calculus**

The Richtr scale was evied y Cahrles F.Richter a American geologist. The scale is based on the equation M(x)=logx/x0(little 0), where x is the seismographic reading of the earthquake and x0 i 1 miron 0.001mm (the seismographic reading of a zero-level earthuquake) a) Determine ...
*December 21, 2009 by Andy*

**math**

the seismic waves of a magnitude 6 earthquake are 10 squared times as great as a magnitude 4 earthquake. The seismic waves of a magnitude 4 earthquake are 10 times as great as a magnitude 3 earthquake. How many times as great are the seismic waves of a magnitude 6 earthquake ...
*February 9, 2014 by nicey*

**Word problem 2**

The 1985 Mexico city earthquake had a magnitude of 8.1 on the Richter scale. The 1976 earthquake in Tangshan, China was 1.26 times and intense. What was the magnitude of the Tangshan earthquake. Thanks
*February 14, 2007 by Jen*

**Logarithmic Scales**

In 1995, Japan had an earthquake of magnitude 7.2. What is the magnitude of an earthquake that is twice as intense?
*March 28, 2012 by Anonymous*

**Earthquakes**

What determines the magnitude of an earthquake? I know that two plates slide against one another and that creates friction and the potential energy turns into kinetic energy in the form of an earthquake. But how is the magnitude determined? Im thinking the longing the 2 plates...
*September 28, 2010 by Lena*

**Logarithms **

1.) A fossil is burned and the CO2 produced is captured. It produces 453 counts of radiation per gram. Under the same conditions atmospheric CO2 produces 19 277 counts. Calculate the age of the fossil. I have the formula: Nt = N0 e^ -t(ln2)/T Nt is the number of atoms of ...
*September 4, 2012 by Amy*

**math-algebra**

How do i solve these problems: 1. 2(-5y^3)^2+(-3y^3)^3 2. Lemon juice is 10^2 times as acidic as tomato juice. Tomato juice is 10^3 times as acidic as egg whites. How many times as acidic is lemon juice as egg whites? Write as a monomial. 3. The seismic waves of a magnitude 6 ...
*February 5, 2008 by Jaylin*

**math**

What is the magnitude on the Richter Scale of an earthquake measuring 3.7 x 10^5 i(sub 0)? How many times more intense is a Richter 5 earthquake than a Richter 2.5 earthquake?
*November 12, 2011 by Nabil*

**Math**

An earthquake was recorded which was 1584893 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake on the Richter scale? Intensity on the Richter scale is log(I/Io).
*December 4, 2013 by DROSP*

**Math (PreCalculus)**

An earthquake was recorded which was 1584893 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake on the Richter scale? Intensity on the Richter scale is log(I/Io). Correct Answer is 6.268. But how to get that?
*December 4, 2013 by DROSP*

**Science**

1) How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake. I know that each unit of Richter magnitude equates to roughly a 32-fold energy increase and that the amplitude has a tenfold increase but I am still confused on how to get the ...
*February 28, 2010 by Janet*

**Science(Urgent)**

1) How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake. I know that each unit of Richter magnitude equates to roughly a 32-fold energy increase and that the amplitude has a tenfold increase but I am still confused on how to get the ...
*February 28, 2010 by Janet*

**science 6th grade**

I am suppose to explain how the moment magnitude and Richter scales of earthquake measurement are similar and how they are different. Can you tell me if I am correct? They are alike because they always come up with the same rating for an earthquake. They are different because ...
*February 11, 2011 by Reed*

**Earth Science**

How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake? I know that a tenfold increase in wave amplitude equals an increase of 1 on the scale so 1 to 2 = 10times so does that mean that 2 to 3 would be 10 more times?
*February 28, 2010 by Janet*

**Earth Science(Please help)**

How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake? I know that a tenfold increase in wave amplitude equals an increase of 1 on the scale so 1 to 2 = 10times so does that mean that 2 to 3 would be 10 more times?
*February 28, 2010 by Janet*

**math**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.9 * 10^2 µm. Find this earthquake's magnitude.
*November 11, 2013 by lisa*

**math**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.9 * 10^2 µm. Find this earthquake's magnitude.
*November 12, 2013 by Anonymous*

**MATH**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.3 102µm. Find this earthquake's magnitude.
*February 8, 2013 by TONYA*

**Earth Science(Please help)**

1) How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake. I know that each unit of Richter magnitude equates to roughly a 32-fold energy increase and that the amplitude has a tenfold increase but I am still confused on how to get the ...
*February 28, 2010 by Janet*

**algebra**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.9 102 µm. Find this earthquake's magnitude on the Richter scale.
*September 1, 2011 by Sharon*

**Math**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.8 x10^2 µm. Find this earthquake's magnitude on the Richter scale.
*October 29, 2011 by Angel *

**algebra**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.2 102 µm. Find this earthquake's magnitude on the Richter scale.
*October 30, 2011 by suzie*

**Math**

In 1986 an earthquake measuring 5.0 on the Richter scale hit northeast Ohio. This earthquake is _______ times as intense as a magnitude 2.0 quake
*June 5, 2014 by Alexis*

**math**

A seismograph 300km from the epicenter of an earthquake recorded a maximum amplitude of 5.8*10^2lrm, find this earthquake's magnitude on the RicHTER scale to the nearest tenth.
*March 12, 2012 by sue*

**alegbra**

a seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude 5.3x10^2 um. Find this earthquake's magnitude. Round this answer to one decimal place.
*May 10, 2014 by Mary Ann*

**algebra**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.7 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
*December 18, 2011 by suzan*

**math**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.2 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.) M =
*January 23, 2012 by kiki*

**Algebra**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.7 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
*July 20, 2012 by Paul*

**Algebra**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.5 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
*November 3, 2012 by Renee Tyler*

**MATH**

A semiograph 300km from the epicenter of an earthquake recorded a maxximum amplitude of 5.3x10^2 um. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth)
*November 4, 2012 by TEDDY *

**Science**

If a tsunami develops during an underwater earthquake, what will most likely occur? a. deep-ocean sediments will travel great distances. b. no destruction will occur near the origin of the earthquake. c. the magnitude of the earthquake will determine the direction of the ...
*March 17, 2009 by Angie*

**math**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.8 multiplied by 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.) M =
*October 20, 2011 by Anonymous*

**DeVry University**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.9 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
*January 20, 2012 by Sandra Beasley*

**ALGEBRA**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.4 multiplied by 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
*April 16, 2012 by Randy*

**College Math**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.3 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
*April 16, 2012 by Yvonne*

**ALGEBRA**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.5 multiplied by 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.) M =
*April 25, 2012 by Randy*

**Math - Working with Logs!!**

On September 26 2001, an earthquake in North Bay measured 5.0 on the Ritcher scale. What is the magnitude of an earthquake 3 times as intense as North Bay's earthquake? I would post my answer, but in text, it's just confusing and I can't post picture links to show my work... ...
*December 11, 2007 by Anonymous*

**d**

Calculus help!!Suppose an earthquake is measured with a magnitude of 6 on the Richter scale with an error of at most 2%. Use differentials to find the error in the intensity of the earthquake
*November 7, 2012 by Anonymous*

**Physics: Earthquakes**

I'm studying for an upcoming exam and I came across this problem: 10 seconds separate the P- and S-wave arrival times of an earthquake which shakes you 1m. How far away is the earthquake epicenter and what is the magnitude? I'm stuck and would really appreciate the help! Thanks!
*April 28, 2014 by Student*

**math**

Ok.. "The strongest recorded earthquake in the world took place in Child on May 22, 1960. It had a magnitude of 9.5 on the Richter scale. The strongest quake actually recorded in Canada was magnitude 8.1 on August 22, 1949 and occurred off the Queen Charlotte Islands. a)How ...
*April 8, 2013 by Josh*

**Computer**

Computers are classified into Four areas, please explain how they are classified?
*March 3, 2010 by Waalyn Waal*

**Algebra 2**

PLEASE HELP-DUE APRIL 5TH, 2011!!!! EARTHQUAKES an earthquake rated at 3.5 on the Richter scale is felt by many people, and an earthquake rated at 4.5 may cause local damage. The Richter scale magnitude reading m is given by m = log (base 10) x, where x represents the ...
*March 27, 2011 by Lindsey*

**scientist**

In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
*September 4, 2009 by Anonymous*

**math**

The strongest recorded earthquake in the world took place in Chile on May 22 1960. It had a magnitude of 9.5 on the Richter scale. The strongest quake actually recorded in Canada was magnitude 8.1 on August 22 1949 and occurred off the Queen Charlotte Islands. (The strongest ...
*March 19, 2013 by Samantha*

**statistics**

Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs? Let x be the magnitude of an earthquake (on the Richter scale), and let y be the depth (in kilometers) of the quake below the surface at the epicenter. Suppose a random sample ...
*August 20, 2010 by karen*

**adv functions**

The strongest recorded earthquake in the world took place in Chile on May 22 1960. It had a magnitude of 9.5 on the Richter scale. The strongest quake actually recorded in Canada was magnitude 8.1 on August 22 1949 and occurred off the Queen Charlotte Islands. (The strongest ...
*March 18, 2013 by Samantha*

**maths**

The magnitude of an earthquake with intensity I is measured using a seismograph. The intensity I is converted into the Richter scale number using the following formula R=log10I. An earthquake in Town A was measured 3 on the Richter scale, while the earthquake in Town B ...
*May 8, 2013 by hemant*

**math30**

The 1933 earthquake in Japan registered 8.9 on the Richter scale. a.The 1985 earthquake in Peru registered 7.7 on the Richter scale. How many more times intense was the earthquake in Japan? Round your answer to one decimal place. b. What would the Richter scale reading be of ...
*July 11, 2012 by alejandro*

**geo**

I need 3 reasons why a huge earthquake wouldnt occur in NYC. I have the following points: 1) New york city doesn't lay beneath any fault lines I also said that if an earthquake were to occur, the magnitude would be on the lower end of the ritcher scale. But how would it occur ...
*September 27, 2010 by Lena*

**math**

An earthquake has a magnitude of 6.7 on the Richter Scale.Find the intensity.
*December 3, 2011 by Earthquakes*

**Math**

How much energy, in joules, is released by an earthquake of magnitude 3.4?
*December 14, 2013 by Clare*

**science**

A _____________________ is an earthquake that occurs after a large earthquake in the same area
*February 28, 2008 by Julia*

**Science**

I need to find info. about earthquakes, such as what causes them..what are the consequences of earthquake..definition of earthquake...etc. Thank you
*May 30, 2008 by Amanda*

**earth science...help**

for this question: Put the folloing words together in a few sentence to explain their meaning and relationship to one another: seismic waves, seismograms, seismoghaps, and seismologists. is this answer suitable: Seismic wave is an elastic shock wave that travels through the ...
*January 13, 2009 by Anonymous*

**Math**

What magnitude of earthquake would release energy equivalent to 35 trillion jules? I know the formula is: E= (2.5 X 10^4) X 10^1.5 X M
*October 20, 2012 by Sam*

**science**

what is the relationship between a one-point increase in magnitude and the amount of energy released by an earthquake?
*March 10, 2009 by gaga*

**Jones**

1. To what extent can earthquakes be predicted? 3. What can a trench dug across an active fault show about past fault movement? 4. What is a seismic gap, and what is its significance in determining future fault activity? 5. What information indicates the probable magnitude of ...
*October 10, 2010 by Joe*

**Science**

1. _______ magma causes powerful and explosive volcanic eruptions. A. Andesitic B. Rhyolitic C. Basaltic D. Composite B? 2. A common characteristic of mountains formed by two colliding continents is marine _______ rock. A. sedimentary B. metamorphic C. limestone D. igneous A...
*February 1, 2014 by Beatrice*

**English**

In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
*May 7, 2009 by john browm*

**Intermediate Algebra**

The magnitude of an earthquake on the Richter scale is given by the formula R=log I, where I is the number of times more intense the quake is than the smallest measurable activity. How many times more intense i an earthquake having a richter scale number of 3.7 than the ...
*April 29, 2012 by Sarahh*

**math**

a seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.5 *10^2,find the earthquakes magnitude. round one decimal
*February 15, 2014 by evelyn*

**english : CT**

In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
*March 19, 2008 by rose*

**critical thinking**

In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
*April 13, 2008 by Matt*

**critical thinking**

In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
*September 11, 2008 by d*

**critical thinking**

In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
*January 22, 2009 by bibi*

**math**

If it has been determined that the probability of an earthquake occurring on a certain day in a certain area is 0.05, what are the odds against an earthquake
*October 8, 2009 by jessica*

**Critical Thinking**

In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
*June 6, 2009 by mary*

**math**

If it has been determined that the probability of an earthquake occurring on a certain day in a certain area is 0.05, what are the odds against an earthquake? multiple choice A) 20 : 1 B) 1 : 20 C) 18 : 1 D) 19 : 1 3
*October 11, 2009 by ann*

**Animal Farm (civics)**

True o False Both times that the windmill was destroyed was actually because of an earthquake. i known 1 time was caused by an earthquake by i forgot the other time
*October 30, 2013 by Anonymous *

**algebra**

find 10-7 divided by 10-7 to determine how much more intense earthquake A was than earthquake B 10-7 DIVIDED BY 10-3
*January 5, 2011 by ron*

**physics**

An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...
*October 24, 2011 by fiko*

**physics**

An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...
*October 24, 2011 by maria*

**physics**

An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...
*October 24, 2011 by maria*

**math**

a seismoraph 300km from the epicenter of an earthquake recorded a maximum amplitude of 5.4 x 10^2um. Find this earthquakes magnitude on the Richter Scale. (Round your answer to the nearest tenth). M=
*November 3, 2012 by CLara*

**geography**

Case study 1 Country:Japan, Date:17th Jan 1995, Area:Kobe, Type of settlement:City, Tectonic plates involved: Pacific plate and Eurasian plate, Richter Scale magnitude:7.3, Duration of earthquake:20 seconds, Estimate death toll:6500. Case study 2 Country:Indian, Date:1st Sept ...
*October 13, 2009 by freddie*

**Physical Science**

explain in detail how the epicenter of an earthquake is located by seismic stations.
*September 16, 2009 by Clarissa*

**physics**

An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...
*October 24, 2011 by maria*

**Science**

I'm currently studying for a science test and I need help on one of the question. - What is a tsunami and how is it related to an earthquake? For the part " What is a tsunami, my answer would be Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea...
*June 2, 2011 by Shadow*

**science i need help**

what is the realtionship between the focus and the epicenter? the focus is the depth of an earthquake, the epicenter is the center of the earthquake.
*October 15, 2006 by alejandra*

**7th grade science **

What could increase the damage to human built structures during an earthquake? A-buildings far away from the pint of origin of the earthquake B- loose material in underlying land C- solid rock beneath buildings D-flexible buildings is it C???
*January 11, 2013 by Aisha *

**geography**

which city was most affected in the haiti earthquake? explain. i know it is Port-au-Prince but i need some more information.
*July 23, 2013 by sanabil*

**Richter scale question**

An earthquake registers 6.1 on the richter scale. What is the rating on an earthquake twice as powerful? I know: M=I/Io Then what do you do?
*November 1, 2010 by Ali*

**Science**

chilean quake's richter magnitude: 8.5 taiwan earthquake's richter magnitude: 7.6 about how much more energy was released by the chilean quake than the taiwan earthwquake? a. twice as much b. ten times as much c. thirty two times as much d. one thousand times as much i think ...
*March 16, 2009 by Angie*

**Chemistry**

Please Help! Describe how water could be classified as either an acid or a base. Give an example of each (acid and base). What word describes substances that can be classified as acids or bases?
*May 8, 2014 by Jackson*

**Science**

Which scale measures the amount of damage after an earthquake? Richter scale Mercalli intensity scale moment magnitude scale seismograph scale
*December 7, 2009 by george*

**Earth Science **

To measure the strength of an earthquake, you can use either a______scale or______scale. A)Richter B)seismograph C)mercalli intensity part:2 A)moment magnitude B)seismogram C)mercalli intensity
*December 7, 2009 by george*

**Macro Economics**

Can it be considered acceptable to policy makers to have about 7 million people classified as unemployed in the U.S.? Explain.
*September 30, 2008 by Joel*

**Geology**

I know that the earth quakes and shakes during a earthquake, but I do not understand how it moves. Can somebody explain how it moves?
*April 12, 2009 by A.W.*

**statistics**

You are randomly selecting 10 college students for an experiment. The population in which you are sampling has 78% of the students classified as Caucasian and 22% classified as Minority. What is the probability that all 10 students selected will be Caucasian?
*March 13, 2011 by john*

**Physics**

The velocity of the transverse waves produced by an earthquake is 5.08 km/s, while that of the longitudinal waves is 8.3312 km/s. A seismograph records the arrival of the transverse waves 55.9 s after that of the longitudinal waves. How far away was the earthquake? Answer in ...
*May 8, 2011 by Laura*

**Physics**

partscoretotalsubmissions1--10/12--10/13--10/14--10/1----4--The tail of a vector is fixed to the origin of an x, y axis system. Originally the vector points along the +x axis. As time passes, the vector rotates counterclockwise. Describe how the sizes of the x and y components...
*May 7, 2007 by Panda*

**Physics**

The velocity of the transverse waves produced by an earthquake is 7 km/s, while that of the longitudinal waves is 11.41 km/s. A seismo- graph records the arrival of the transverse waves 51.1 s after that of the longitudinal waves. How far away was the earthquake?
*September 26, 2012 by Evelyn*

**science **

To locate the epicenter of an earthquake a seismologists must determine all of the following except ? a) the difference between arrival time of P and S waves b) seismographic locations data from the seismograph locations c) the distance from the epicenter to at least three ...
*February 18, 2014 by victoria *

**Physics**

The velocity of the transverse waves produced by an earthquake is 7.2 km/s, while that of the longitudinal waves is 4.2 km/s. A seismograph records the arrival of the transverse waves 68 s before that of the longitudinal waves. How far away was the earthquake?
*December 14, 2007 by Einstein*

**Science**

Bacteria are classified into three basic shapes. Name them and give the scientific name for the shape. 1. Diplococcus - Round and paired. 2. Bacilli - Rod shaped. 3. I don't know which else shape they would be classified into.
*March 5, 2014 by Anonymous*

**Physics**

The speed of longitudinal waves, called P waves, is 7274.0 m/s. Transverse waves, called S waves, travel at a slower 3803.0 m/s. A seismograph records the two waves from a distant earthquake. If the S wave arrives 4.47 min after the P wave, how far away was the earthquake?
*November 23, 2010 by Pete*

**science**

Identify the 3 things that can be classified as Matter and 3 things that cannot. Explain your reasoning for each classification.
*February 6, 2013 by teacher1*

**science**

can the magnitude of the resultant of two vectors be smaller than the magnitude of either of them? Explain
*July 22, 2012 by preyoshi*

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