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joshua figuerola

joshua f.

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- Your answer is partially correct. One proposed fusion reaction combines lithium $^{6}_{3}$Li (6.015 u) with deuterium $^{2}_{1}$H (2.014 u) to give helium $^{4}_{2}$He (4.003 u): $^{6}_{3}$Li + $^{2}_{1}$H $\rightarrow$ $^{4}_{2}$He. How many kilograms of lithium would be needed to supply the energy needs of one household for a year, estimated to be 1.20 $\times$ 10$^{10}$ J? Number [ ] Units kg eTextbook and Media Hint Assistance Used Please Note: the variables in this chalkboard video correspond to the problem as it is presented in your textbook. Chalkboard Video To find the energy released per reaction, we follow the usual procedure of determining how much the mass has decreased because of the fusion process. Once the energy released per reaction is determined, we can determine the mass of lithium needed to produce the stated energy by using the number of reactions (i.e.nuclei) per kg of lithium.

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1. Answer the following: a) Draw a diagram of the economy as an economist organizes it, showing only the expenditure flows. This diagram should identify the major decision-making sectors in the economy, and how they interact with the various other sectors and markets of the economy (i.e. draw the large circular flow diagram!) b) From this diagram, identify the four important markets macroeconomists identify in the economy. (Hint - where are the factor markets (markets for labor and capital), final goods and services markets, the trade and financial markets shown on the diagram – what portion of the circular flow diagram?) c) How does this diagram tell us national income, production and expenditure will be related? Explain why this is true.

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Question 60 (1 point) Flu vaccination shots provide external benefits. Thus: a) too many flu vaccination shots are given. b) too few flu vaccination shots are given. c) the private market provides the socially desirable output of shots. d) the private market collapses.

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Which group of invertebrates is most closely related to vertebrates? arthropods annelids cephalochordates echinoderms

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In thinking about your Health Project, identify three (3) strengths that you believe contributed to providing a successful education session. I chose project about healthy habits for 5-6 years of children.

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Why is a carbohydrate said to be "protein sparing"? Question 16 options: a) Because if the diet provides enough carbohydrate for energy, then dietary protein can be used to make new proteins in the body. b) Because if the diet provides enough protein, then glucose will be used for energy. c) Because fiber is needed in order to absorb amino acids into the body. d) Because if there is not enough protein in the diet, the body cannot digest starch.

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A car is initially cruising at a constant speed of 17 m/s, and the brake is applied for 3.8 s to slow down the car at a rate of 1.8 m/s². What is the distance in the unit of meters that the car travels during the time the brake is applied?

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Q3 find the coordinates of the centroid of this composite shape. ANS \bar{x} = 0 \bar{y} = 43.7 mm \bar{z} = 38.2 mm

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What are the negative associations with using nonlethal tools to deter wolves from livestock?

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How long did the first paper published in the American colonies last? Question 1 options: One year One hour One month One week One day

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