Numerade

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An air-standard regenerative Brayton cycle operating at steady state with intercooling and reheat produces 5 MW of power. Operating data at principal states in the cycle are given in the table below. The states are numbered as in the figure below. State p(kPa) T(K) h(kJ/kg) 1 100 300 300 2 300 410.1 411.1 3 300 300 300 4 1200 444.8 446.4 5 1200 1110 1173 6 1200 1450 1574 7 300 1034 1084 8 300 1450 1574 9 100 1110 1173 10 100 444.8 446.4 Determine: (a) the mass flow rate of air, in kg/s. (b) the total rate of heat transfer, in kW, to the working fluid passing through the Combustor 1 and Combustor 2. (c) the percent thermal efficiency.

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What is the prime adaptive ego quality associated with very old age? a. Will b. Hope c. Confidence d. Care

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John Bloomberg and Erick Ashman have been working together to earn money by doing yard work in residential areas. John collects the payments and has purchased the equipment the two use, including a lawn mower, edger, and trimmers. After deducting expenses for gasoline, repairs, and insurance, John gives one-half of the net to Erick. The two have no agreement about their relationship. Which of the following is correct? John and Erick have a general partnership John and Erick have a limited partnership John and Erick have a joint venture John and Erick have no business structure because they have no agreement.

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A large ball of mass M and a small ball of mass m << M are dropped together from a height H with the small on top of the large one. How high will the small ball bounce back? a) It'll bounce lower than it was dropped. b) It'll bounce to the same height it was dropped. c) It'll bounce higher than it was dropped.

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Question 2 Epigenetics is a field that describes how Odifferent genes are inherited by different daughter cells. histones are modified by enzymes that regulate gene expression. gene expression can differ independent of DNA sequence.

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Answer this question: 1. Discuss Descartes' description of the mechanistic reflex and the nervous system.

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3. [15 pts] Construct the truth table for the following: (a) $\neg P \lor \neg Q$ PQ TT TF FT FF (b) $\neg P \to (R \land Q)$ PQR TTT TTF TFT TFF FTT FTF F F F

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What phenomenon is described by the redshift of light from distant galaxies?A. The galaxies are moving towards usB. The galaxies are moving away from usC. The galaxies are stationaryD. The light is affected by interstellar dust

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The central dogma states that information flows from DNA to RNA to protein. Which below is an exception to this rule? Group of answer choices Retrotransposons use reverse transcriptase to copy-paste their copies in the genome. Scientists can use a peptide sequence to determine the DNA sequence. Alternative splicing of mRNA leads to a change in flow of information from protein to RNA. mRNA processing changes the genomic DNA sequencing. RNA polymerase is required for DNA synthesis.

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In colder weather, what can a bird’s cells do in order to best modify the fatty acid composition of lipid membranes and maintain membrane fluidity homeostasis?

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