The intensities I of two earthquakes are compared with the Richter scale magnitudes, M. log (I2/I1) = M2 – M1 How many times greater is the intensity of earthquake 2 with M2 = 8.0 than earthquake 1 with M1 = 6.0? 100 times 2 times 50 times
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The intensities I of two earthquakes are compared with the Richter scale magnitudes, M.
log (I2/I1) = M2 – M1
How many times greater is the intensity of earthquake 2 with M2 = 8.0 than earthquake 1 with M1 = 6.0?
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100 times |
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2 times |
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50 times |
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Solved in 3 steps with 3 images
- 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…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
- tectonic plates are large, slow moving segments are earths crust. suppose the average speed is 9.5cm/year for a tectonic plate. what is the plates speed in km/million years?Explorers in the jungle find an ancient monument in the shape of a large isosceles triangle as shown in the figure below. The monument is made from tens of thousands of small stone blocks of density3 633kg/m3. The monument is16.7m high and68.5m wide at its base and is everywhere3.70m thick from front to back. Before the monument was built many years ago, all the stone blocks lay on the ground. How much work did laborers do on the blocks to put them in position while building the entire monument?Note: The gravitational potential energy of an object-Earth system is given byUg=MgyCM, whereMis the total mass of the object andyCMis the elevation of its center of mass above the chosen reference level.JGold has a density of 19.3 gm/cm3. If a gold coin has a mass of 60 grams and a thickness of 0.3 cm, what would you estimate its diameter to be? 0.3cm ??? cm The accepted thickness of a sheet in the South College Catalog is 0.123 mm. If there are 25.4 mm in 1.0 inch and the South College catalog has 312 numbered pages, about how thick is the entire South College catalog in inches? South College Academic Catalog
- Given the density of iron as 7800 kg/m 3 , and the Earth radius is 6.38 x 10 6 m, if 55% of the Earth's volume is filled with Iron, and 45% is filled with rocks that has a density of 2600 kg/m 3 , what is the total mass of the Earth? I am looking for the total mass. m=densityxvolume, but am confused as im not such if i take 55% of irons density and 45% of the rocks density?Antarctica is roughly semicircular, with a radius of about r = 1950 km (see figure below). The average thickness of its ice cover is h = 3050 m. How many cubic centimeters of ice does Antarctica contain? (Ignore the curvature of Earth.) cm3Convert the volume (SCF) of natural gas to tons of natural gas. Given: volume of gas is 42,201 standard cubic feet (SCF) at 60°F and 14.7psia. NOTE: this answer will NOT be in metric tons, but English tons. Choose your answer with TWO decimals. O 1.60 10^5 tons O 3.20*10^8 tons O 1.11 tons O 2.78 10^-3 tons
- Peak A has a height of 93 mm and a width at half height of 12 while peak B has a height of 79 and a width at half height of 7. What is the percent composition of peak B? Please give your answer as a whole number and do not include "%".The magnitude M of an earthquake is a function of energy E measured in ergs. Richter and Gutenberg developed the so-called Richter Scale. In 2013, a 7.2 magnitude earthquake hit Central Visayas and killed more than 150 people, destroyed century-old churches, and affected more than 3 million families. What is the amount of energy released by this earthquake?Question 11 One cube is made of uranium and has side length 57.0 cm and one cube is made of an unknown substance with side length 39.0 cm. The mass of the uranium cube is 1.83 times larger than the mass of the unknown cube. The density of uranium is 19 g/cm³: what is the density of unknown cube? NOTE: Please enter your answer with three significant figures. Do not use scientific notation. Do not enter units (but your answer must be in g/cm3). Your Answer: