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- Find the intensities of earthquakes whose magnitudes are (a) R=6.0 and (b) R=7.9.H.W2: A pyrometer is specified as having a repeatability of +0.4% of full-scale reading when used on its 500 to 3000°C range. What will be its value and error due to repeatability when the reading is 1200°C?Use the Atmospheric Carbon Dioxide Concentration scatterplot below to answer the questions. Atmospheric Carbon Dioxide Concentration 1970-2012 400.00 380.00 2011, 391.63 360.00 340.00 y = 1.6178x - 2864.6 R = 0.994 320.00 300.00 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 Year Use the equation to estimate the CO2 level in 2011. (round to the tenths place) wdd u zoɔ
- An electric range burner weighing 616.0 grams is turned off after reaching a temperature of 483.2°C, and is allowed to cool down to 22.1°C. Calculate the specific heat of the burner if all the heat evolved from the burner is used to heat 551.0 grams of water from 22.1°C to 82.7°C. Answer J/g°CEmissions of sulfur dioxide by industry set off chemical changes in the atmosphere that result in "acid rain". The acidity of liquids is measured by pH on a scale of 00 to 14.14. Distilled water has pH 7.0,7.0, and lower pH values indicate acidity. Normal rain is somewhat acidic, so acid rain is sometimes defined as rainfall with a pH below 5.0.5.0. The pH of rain at one location varies among rainy days according to a Normal distribution with mean 5.435.43 and standard deviation 0.54.deviation 0.54. What proportion of rainy days have rainfall with pH below 5.0?5.0?A severe storm has an average peak wave height of u=16.4 feet for waves hitting the shore. Suppose that a reading of 38 waves showed an average weight height of x=16.9 feet. Previous studies of severe storms indicate that o=3.5 feet. Does this information suggest that the storm is increasing above the severe rating? Use a=0.01 
- Find the temperature of an object when t = 9 if T0 = 18,C = 5, and k = 0.6.Given a cooling coefficient y of 0.1, how long does it take water at 20°C to freeze (reach 0°C) in air that is -10°C?Use the table to the right to answer the following question. How many kilograms of combustible sedimentary rock would be required to supply the energy needs of country A for 1 year? Item Energy released by burning 1 kg of a certain combustible sedimentary rock Energy (joules) 1.6x 10° nts Energy released by fission of 1 kg of a certain isotope 5.6x 1013 7x 10 1x 1021 4x 1020 al Energy released by fusion of hydrogen in 1 liter of water Country A annual energy consumption Country B annual energy consumption It would take approximately kilograms. ess (Use scientific noteipn. Use the multiplication symbol in the math palette as needed. Round to three decimal places as needed.)
- Emissions of sulfur dioxide by industry set off chemical changes in the atmosphere that result in "acid rain". The acidity of liquids is measured by pH on a scale of 00 to 14.14. Distilled water has pH 7.0,7.0, and lower pH values indicate acidity. Normal rain is somewhat acidic, so "acid rain" is sometimes defined as rainfall with a pH below 5.0.5.0. The pH of rain at one location varies among rainy days according to a Normal distribution with mean 5.435.43 and standard deviations 0.54.0.54. What proportion of rainy days have rainfall with pH below 5.0?5.0? Use software or Table A to find the answer. (Enter your answer rounded to four decimal places.) proportion:In thermodynamics, the Van der Waal's equation relates the mean pressure, p, of a substance to its molar volume v at some temperature T as follows: when p = 5.2 and v = 2.9? Chemists are interested in the curves, called isotherms, described by this equation when the temperature is held fixed, and R is a constant. What is the value of a. 4.917247 O b. 4.153788 O c. -0.023019 d. 3.391149 e. 481.374547 (p+ 2.8) ( O f. 0.866223 (v - 4.8) = RT dp duEmissions of sulfur dioxide by industry set off chemical changes in the atmosphere that result in "acid rain". The acidity of liquids is measured by pH on a scale of 00 to 14.14. Distilled water has pH 7.0,7.0, and lower pH values indicate acidity. Normal rain is somewhat acidic, so "acid rain" is sometimes defined as rainfall with a pH below 5.0.5.0. The pH of rain at one location varies among rainy days according to a Normal distribution with mean 5.43 and standard deviations 0.54. What proportion of rainy days have rainfall with pH below 5.0?5.0?