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- The earth is moving at approximately what speed in miles per hour If one of the planets in our solar system averages 0.723332 astronomical units from the sun, what is its orbital period (in Earth years, with one year = 365.256 Earth days)? the cubic root of (0.723332)1/2 = 0.947450 Earth years the square root of (0.723332)1/2 = 0.922220 Earth years the cubic root of (0.723332)1/3 = 0.964652 Earth years the square root of (0.723332)3 = 0.615186 Earth years the cubic root of (0.723332)2 = 0.805796 Earth yearsThe picture below shows the position of Earth and two stars. Star 1 is 18 light years from Star 2 and 34 light years from Earth. If Star 2 explodes as a supernova, in how many years would the explosion be seen from Earth? (3 points) Group of answer choices 18 34 70 52
- The earths reflectivity is about 27%. What is the Earths "no greenhouse" temperature in Kelvin? Assume Earth is at a distance of 1 AU from the Sun.Mercury Emissions by Continent By weight, coal does not contain much mercury, but we burn a lot of it. Several industries besides coal-fired power plants contribute substantially to atmospheric mercury pollution. FIGURE 2.13 shows mercury emissions by industry from different regions of the world in 2010. FIGURE 2.13 Global mercury emissions by sector, 2010. About how many metric tons of mercury were released in total from these regions?Mercury Emissions by Continent By weight, coal does not contain much mercury, but we burn a lot of it. Several industries besides coal-fired power plants contribute substantially to atmospheric mercury pollution. FIGURE 2.13 shows mercury emissions by industry from different regions of the world in 2010. FIGURE 2.13 Global mercury emissions by sector, 2010. Which region emitted the most mercury from burning fossil fuels?
- Mercury Emissions by Continent By weight, coal does not contain much mercury, but we burn a lot of it. Several industries besides coal-fired power plants contribute substantially to atmospheric mercury pollution. FIGURE 2.13 shows mercury emissions by industry from different regions of the world in 2010. FIGURE 2.13 Global mercury emissions by sector, 2010. About how many metric tons of mercury were released from metal production in Asia?Mercury Emissions by Continent By weight, coal does not contain much mercury, but we burn a lot of it. Several industries besides coal-fired power plants contribute substantially to atmospheric mercury pollution. FIGURE 2.13 shows mercury emissions by industry from different regions of the world in 2010. FIGURE 2.13 Global mercury emissions by sector, 2010. Which industry tops the list of mercury emitters? Which industry is next on the list?According to Aristotle’s rules, which of the following objects would be suitable for scientific inquiry? a brightly colored snake with one head B. a stationary object with a density of 0 grams/cm3 a moving object with infinite velocity a brightly colored snake with two heads E. a distant star that burns eternally
- A sample of a igneous rock contains small amounts of radioactive potassium and argon. Using the ratio of 40Ar to 40K, it is determined that only 25% of the original parent isotope remained. How old is this rock sample? Please include thought process and a therefore statement. Thank you very much, have a good day!What does not orbit the sunStarting at rest (on a spaceship), an object falls 1,600 feet towards the Earth (acceleration = 32 feet per second2, in the vacuum of space). Neglecting the possible effects of air friction, if the final velocity of the object is 320 feet per second (vf) when it hits Mount Everest, how long was the fall? 2 seconds 4 seconds 6 seconds 8 seconds 10 seconds