Compare the energy produced per kg of fuel for the combustion of coal, d-d fusion and d-t fusion
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Compare the energy produced per kg of fuel for the combustion of coal, d-d fusion and d-t fusion.
d-d: _____________ ×107 MJ/kg
d-t: _____________ ×108 MJ/kg
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- A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar System. Mass-spectroscopic analysis produced the following data on the isotopes of tin in these samples: isotope 118 "Sn 120 Sn Use these measurements to complete the entry for tin in the Periodic Table that would be used on 98765 ALEKS. Be sure your answers have the correct number of significant digits. Caution: your correct answer will have the same format but not necessarily the same numbers as the entry for tin in the Periodic Table we use here on Earth. 0 Sn mass relative (amu) abundance 117.9 54.% 0 119.9 Continue 46.% X S evee muuraw Hill LLC. All Rights Reserved. Submit Assignment Terms of Use | Privacy Center AccessibilityDescribe the following three fuel cycles: once-through, modified open and fully closed. Also state roughly how long it is before the relative radiotoxicity of the associated waste form reaches that of uranium ore.a.Calculate the mass loss rate of the Sun M˙ due to the solar wind flow. Assume averageproperties of the solar wind of number density 6 protons cm−3, and a flow speed of 450 kms−1. Express your answer in units of both kg per year, and solar masses per year. b.Suppose the solar wind flow is perfectly radial. Calculate the expected rate of change ofsolar rotation frequency dω/dt at the present time, based on conservation of angular momentum. Give your answer in units of rad s−1 y−1(i.e., radians per second per year) and alsoin terms of fractional change per year, i.e., 1/ωdω/dt .Use a current solar rotation period of P = 25.38 days to calculate the current angularfrequency of rotation ω. The moment of inertia of a uniform sphere is 2/5 MR2. You canassume that the radius of the Sun is approximately constant, and the change in its momentof inertia due to the solar wind is only due to the mass loss. c.By observing the rotation period of stars similar to the Sun, it is inferred that their…