Following an earthquake, how long would it take a P-wave moving in a straight line with a speed of 5 km s-1 to reach the Earth’s opposite side?
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Following an earthquake, how long would it take a P-wave moving in a straight line with a
speed of 5 km s-1 to reach the Earth’s opposite side?
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- The Richter Scale is used for measuring the magnitude of earthquakes. the magnitude of an earthquake is, by deifnition, measured 100 kilometers from its originating point, and is given by the equation M = log(s/10^-4), where S is the "strength" of the earthquake, as determined by the shockwaves it sends through the ground. Earthquake strengths vary greatly from 0 in some cases to 800,000,000 or more in other cases which is why a logarithmic scale is used to measure their magnitudes. (I already know Part A) Part B Suppose a given earthquake is twice as strong as another earthquake. Determine the difference in magnitude of these earthquakes. Part C The largest manmade explosion was the test detonation of the Tsar Bomba hydrogen bomb. It was equivalent to about 50 million tons of TNT. It was similar in intensity to a magnitude 8.5 earthquake. The stronger earthquake ever recorded was the 1960 Valdivia earthquake than the Tsar Bomba? How much TNT was the earthquake equivalent to? Show…The Richter Scale is used for measuring the magnitude of earthquakes. the magnitude of an earthquake is, by deifnition, measured 100 kilometers from its originating point, and is given by the equation M = log(s/10^-4), where S is the "strength" of the earthquake, as determined by the shockwaves it sends through the ground. Earthquake strengths vary greatly from 0 in some cases to 800,000,000 or more in other cases which is why a logarithmic scale is used to measure their magnitudes. Part A One of the strongest earthquakes ever recorded had a magnitude of 8.9 on the Richter Scale. i) Determine the strength of this earthquake. ii) What would be the magnitude of an earthquake four times weaker than this one? iii) How many times stronger was this earthquake than the magnitude 2 earthquake that stuck central New Jersey in 2012? Part B Suppose a given earthquake is twice as strong as another earthquake. Determine the difference in magnitude of these earthquakes. Part C The largest…The radius of the Earth R_{E} = 6.378 * 10 ^ 6 m and the acceleration due to gravity at its surface is 9.81m / (s ^ 2) Calculate the altitude above the surface of earth in meters , at which the acceleration due to gravity is g= 1.2 m/s^2
- Tectonic plates are large segments of Earth’s crust that move slowly. Suppose one such plate has an average speed of 4.0 cm/yr. (a) What distance does it move in 1.0 s at this speed? (b) What is its speed in kilometers per million years?The North American and European continents are moving apart at a rate of about 3 cm/y. At this rate how long will it take them to drift 480 km farther apart than they are at present?This question is not about solving the stated problem, but about understanding it. A rocket is launched, and its height above sea level t seconds after launch is given by the equation h(t) = 4.9t2 + 1400t + 350. a) From what height was the rocket launched? To answer this question, we'd find: Select an answer The t intercept The h intercept b) What is the maximum height the The t coordinate of the vertex The h coordinate of the vertex To answer this question, we'd find: (Select an answer c) If the rocket will splash down in the ocean, when will it splash down? To answer this question, we'd find: (Select an answer MacBook Pro G Search or type URL @ $ & 1 2 3 4 5 6 7 8. %3D delete Q E R Y U P %3D A D G H J K C V Command command ontion V - B
- Tectonic plates are large segments of the earth's crust that move slowly. Suppose one such plate has an average speed of 3.0 cm per year. (a) What distance does it move in 12 seconds at this speed? (b) What is its speed in miles per million years?Tectonic plates are large segments of the Earth's crust that move slowly. Suppose one such plate has an average speed of 3.6 cm per year. (a) What distance does it move in 90 seconds at this speed? (b) What is its speed in miles per million years? mi/million yrThe intensity levels I of two earthquakes measured on a seismograph can be compared by the formula log(I1I2)=M1−M2 using the common (base 10) logarithm and where M is the magnitude given by the Richter Scale. In August 2009, an earthquake of magnitude 6.1 hit Honshu, Japan. In March 2011, that same region experienced yet another, more devastating earthquake, this time with a magnitude of 9.0.[1] How many times greater was the intensity of the 2011 earthquake? Round to the nearest whole number. The intensity of the 2011 earthquake was ________ times greater than the intensity of the 2009 earthquake. 1 http://earthquake.usgs.gov/earthquakes/world/historical.php. Accessed 3/4/2014.
- Tectonic plates are large segments of the Earth's crust which move slowly. Suppose that one such plate has an average speed of 4.0 cm in every 365 days. What distance does it move in 1 hour at this speed? Round off your answer to the hundred thousandth place.The planet Jupiter has a mass of 1.9 × 1027 kg and a radius of 72,000 km. The Earth, meanwhile, has a mass of 6.0 × 1024 kg and a radius of 6,400 km. What is the volume of Earth in m^3?A formula for calculating the magnitude of an earthquake is M = 2log B that uses the common (base 10) logarithm. This is called the Moment Magnitude Scale (MMS), an alternative to the more well known Richter Scale. One earthquake has magnitude 3.9 on the MMS. If a second earthquake has 650 times as much energy as the first, find the magnitude of the second quake. Round to the nearest hundredth. The magnitude of the second earthquake was Number
