Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
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Chapter 7.5, Problem 7.5CYU
To determine
The temperature of Earth tracked which of the following factor.
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How long does it take for energy produced in the Sun's core to reach the photosphere?
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Chapter 7 Solutions
Understanding Our Universe
Ch. 7.1 - Prob. 7.1CYUCh. 7.2 - Prob. 7.2CYUCh. 7.3 - Prob. 7.3CYUCh. 7.4 - Prob. 7.4CYUCh. 7.5 - Prob. 7.5CYUCh. 7 - Prob. 1QAPCh. 7 - Prob. 2QAPCh. 7 - Prob. 3QAPCh. 7 - Prob. 4QAPCh. 7 - Prob. 5QAP
Ch. 7 - Prob. 6QAPCh. 7 - Prob. 7QAPCh. 7 - Prob. 8QAPCh. 7 - Prob. 9QAPCh. 7 - Prob. 10QAPCh. 7 - Prob. 11QAPCh. 7 - Prob. 12QAPCh. 7 - Prob. 13QAPCh. 7 - Prob. 14QAPCh. 7 - Prob. 15QAPCh. 7 - Prob. 16QAPCh. 7 - Prob. 17QAPCh. 7 - Prob. 18QAPCh. 7 - Prob. 19QAPCh. 7 - Prob. 20QAPCh. 7 - Prob. 21QAPCh. 7 - Prob. 22QAPCh. 7 - Prob. 23QAPCh. 7 - Prob. 24QAPCh. 7 - Prob. 25QAPCh. 7 - Prob. 26QAPCh. 7 - Prob. 27QAPCh. 7 - Prob. 28QAPCh. 7 - Prob. 29QAPCh. 7 - Prob. 30QAPCh. 7 - Prob. 31QAPCh. 7 - Prob. 32QAPCh. 7 - Prob. 33QAPCh. 7 - Prob. 34QAPCh. 7 - Prob. 35QAPCh. 7 - Prob. 36QAPCh. 7 - Prob. 37QAPCh. 7 - Prob. 38QAPCh. 7 - Prob. 39QAPCh. 7 - Prob. 40QAPCh. 7 - Prob. 41QAPCh. 7 - Prob. 42QAPCh. 7 - Prob. 43QAPCh. 7 - Prob. 44QAPCh. 7 - Prob. 45QAP
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- 62. Pressure of the Photosphere. The gas pressure of the photosphere changes substantially from its upper levels to its lower levels. Near the top of the photosphere, the temperature is about 4500 K and there are about 1.6 x 1016 gas particles per cubic centimeter. In the middle, the temperature is about 5800 K and there are about 1.0 x 10" gas particles per cubic centimeter. At the bottom of the photosphere, the temperature is about 7000 K and there are about 1.5 × 10" gas particles per cubic centimeter. Use the ideal gas law (Mathematical Insight 14.2) to compare the pressures of each of these layers; explain the reason for the trend that you find. How do these gas pressures compare with Earth's atmospheric pressure at sea level?arrow_forwardIn the graph from the class handout the inflow of energy from the sun is given as a constant 236 watts per meter squared. To get this figure we used L(1 – a) × 236 W/m², where L = 1350 W/m²is the solar constant, and a = 0.3 is the Earth's albedo (meaning that 30% of the Sun's energy is reflected back into space). The 1/4 comes from averaging the arriving solar energy over the whole Earth (the surface area of the Earth is 4 times the area of the "disk of energy" hitting the Earth.) Using these ideas estimate the inflow of energy to a planet if the solar constant is 647 watts per meter squared and the planet's albedo is 0.5. Round your answer to the near 10 watts per square meter.arrow_forwardWhich of the following incidents will cause the solar constant of a planet to decrease? Select all that apply: a. the planet moves farther from the sun b. the planet’s albedo increases c. the planet’s atmosphere thins d. the sun’s total energy output decreasesarrow_forward
- The US had 264 billion barrels of oil in reserve at the end of 2019. Us annual energy consumption is 1.0 x 1020 joules and energy released by burning a liter of oil is 1.2 x 107 joules. How long can the US run on its reserves? Use the conversion 1 barrel = 159 liters.arrow_forwardConsider a cloudless day on which the sun shines down across the United States. If 2336 kJ2336 kJ of energy reaches a square meter (m2)(m2) of the United States in one hour, how much total solar energy reaches the entire United States per hour? The entire area of the United States is 9,158,960 km29,158,960 km2.arrow_forwardThe capture of too few solar neutrinos by Davis in the solar neutrino experiment a. can be explained if the sun is not undergoing thermonuclear fusion of hydrogen in its core. b. indicates that the sun’s core is much cooler than expected. c. indicates that the sun’s core is much hotter than expected. d. indicates that the sun’s core is convective. e. is explained by none of the above.arrow_forward
- In general what would be the most effective means for making the atmosphere more unstable? Warming the mid-levels (e.g., 500mb level) and cooling the surface. Cooling the mid-levels (e.g., 500mb level) and warming the surface. Warming both the mid-levels (e.g., 500mb level) and the surface. Cooling both the mid-levels (e.g., 500mb level) and the surface.arrow_forwardcal Science-SC5 X + ive r19.core.learn.edgenuity.com/player/ mental Science - SC5181 A < 21 90 The graph shows the changes in global temperatures over time. Estimated global temperature over the last 500 million years equatorial Pangea too hot for peat swamps Maa 500 450 23 24 25 Mark this and return 400 350 300 250 200 millions of years ago Cretaceous Hot Greenhouse world without polar ice caps Paleocene- Eocene Thermal Maximum world with polar ice caps (Courtesy of NASA) Which of the following hypotheses is supported by the data analysis? O Earth's temperature has natural cycles throughout history. Humans have caused all of Earth's temperature changes DELL 150 100 50 Today Adapted from Smithsonian Institution Save and Exit Nextarrow_forwardWhy is infrared radiation emitted from earth A) the earth cannot absorb or emit infrared radiation B) the earth emits infrared radiation because of radioactive decay C) the earth can emit infrared radiation because it core D) the earth absorbs radiation from the sunarrow_forward
- Consider a cloudless day on which the sun shines down across the United States. If 2951 kJ2951 kJ of energy reaches a square meter (m2)(m2) of the United States in one hour, how much total solar energy reaches the entire United States per hour? The entire area of the United States is 9,158,960 km29,158,960 km2. solar energy per hour is ???arrow_forwardMultiple choice. The total Sun's energy output for every second can power Earth in modern time hundreds of years several hundreds of thousands years about 50-100 years millions of years billions of yearsarrow_forwardStep-by-step, explain how energy flows from the center of the Sun to Earth.arrow_forward
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