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- Find the intensities of earthquakes whose magnitudes are (a) R=6.0 and (b) R=7.9.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 zoɔH.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?
- 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.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.)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 du
- 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?Radon is a gas emitted from the ground that can collect in houses in buildings. At certain levels it can cause lung cancer. Radon concentrations are measured in picocuries per liter (pCi/L). A radon level of 4 pCi/L is considered “acceptable” Radon levels in a house vary from week to week. In one house, a sample of 6 weeks had the following readings for radon level (in pCi/L): 1.9 2.8 3.9 3.9 4.2 5.7 Find the variance and standard deviation (definitional formula). Show your work using a table.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: