The United States consumes about 2.5 3 1019 J of energy in all forms in a year. How many years could you run the United States on the energy released by the solar flare
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- A 1-megaton nuclear weapon produces about 4 × 10¹5 J of energy. How much mass must vanish when a 5-megaton weapon explodes?What is the name of the specific nuclear fusion process that dominates energy production in the core of the Sun and gives a brief description of how it works. What I'm looking for in this description is what is the basic premise behind nuclear fusion and what is going into this specific fusion reaction and what comes out of it.If the temperature at the centre of the sun is 15,000,000 K and the temperature of the photosphere is 5,800 K, what is the ratio of the temperature at the centre of the Sun compared to the photosphere? Express your final answer in the fully factorised form x : 1, where x is a number that you should determine to an appropriate number of significant figures and write it using scientific notation.
- 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?What percentage of the energy we use comes from the sun? 25% 50% More than 90% Less than 10%If you were located 100 km from a 1 GW nuclear power plant,what would the neutrino flux be at your location? Assume that a1 GW nuclear power plant releases 1021 neutrinos per second andyou present a 1 m2 surface to the neutrino flux.