Determine heat input into engine for each mj removed
A heat-engine of 32% thermal efficiency is used to drive a refrigerator having coefficient of performance of 5. Determine the heat input into the engine for each MJ removed from the refrigerated space by the refrigerator.
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How many mL of unknown "X" (density = 0.79 g/mL) needs to be dissolved in 50.0 g of water (Kb=0.512) to make the boiling point of the resulting solution to be 104.5 degree celsius if when unknown "X" dissolves in water to form 3 moles of ions for
Cruising at 20.1 m/s (45 mph), the gage reads 14 inches of Hg (Mercury) vacuum. If the local atmospheric pressure is 99.5 kPa, what is the absolute intake manifold pressure in kPa. Show all your steps clearly.
What kind of distribution does Y have (give name and parameter value(s))? Find the expected daily revenue for the extruder.
Aniline (C6H5NH2, Kb = 4.3 x 10^-10) is a weak base used in the manufacture of dyes. Calculate the value of Kn for neautralization of aniline by vitamin C (ascorbic acid, C6H8O6, Ka = 8.0 x 10^-5). Does much aniline remain at equilibrium?
Evaluate Zeff for a valence electron in the elements Li through Ne and use the result to explain the observed trend in the first ionization energy of these elements.
Explain why, in the base-catalyzed halogenation of acetone, the second and third halogenations occur on the same carbon as the first, and not the carbon of the other methyl group??
How much work does he do during a 100 km race in which his average speed is 12.0 m/s? Often, the work done is expressed in nutritional Calories rather than in joules. Express the work done in part (a) in terms of nutritional Calories, noting that
An article in the Journal of Composite Materials (Vol 23, 1989, p. 1200) describes the effect of delamination on the natural frequency of beams made from composite laminates. Five such delaminated beams were subjected to loads, and the resulting f
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Should Alabama write a new state constitution? Who would be chosen to represent the people at such a Constitutional Convention?
How did populism offer an alternative to the traditional two parties of Democrat or Republican? Do you still see some elements of populism in politics today?
Question: What was not an issue in the 1980 election? Responses confidence in the leadership confidence in the leadership social programs social programs hosta
In a globalized world, what role do you think the US government, if any, should play in dealing with other countries political or financial instability?
What is ethno-nationalist terrorism? Provide a definition. Discuss the role of the state in ethno-nationalist terrorism. Answer in 2-4 sentences.
Make an argument that there is a problem in your community that needs solving, explain possible solutions, and describe ways that people in your community could
How Social Media Is Reshaping News. Pew Research Center, 24 Sept. 2014. E-Book. Anderson a researcher for Pew Research Center, and alumni from Stanford