Define the Problem: In your own words, what is the goal of the engineering lab? Criteria and Limitations: In this section, please list at least three criteria that must be met by your train design. Also include any limitations that could prevent it from getting its cargo to the station. Criteria Limitations Design Ideas—Pros and Cons: In this section, describe three design ideas you have for your train. List at least one pro (a positive) and one con (a negative) for each design option. Description of Train Design Pro Con Train One Train Two Train Three Data: Record the results of each of the test runs you make to the train station. Be sure to describe any changes you make to your train between each test run. Train One Train Two Train Three Test Results? Any redesign? Test Results? Any redesign? Test Results? Track One Track Two Track Three Analyze Data and Refine Design: This section will include an analysis of your test results and plans for redesigning your train. Please write in complete sentences. Were any of your train designs able to get their cargo to the train station without crashing? If yes, describe the design of the successful train. If no, describe the design of the train that got closest to the station. Which of your criteria presented the most challenge to getting the train to its goal, and why? Which limitation was the biggest roadblock to getting the train to the station? Why was it important to have endothermic and exothermic processes in the building materials of your train? Which engines released thermal energy in an exothermic reaction? Which engines absorbed thermal energy in an endothermic reaction? If you could add any building item options to your virtual train to improve its design, what would those items be, and why would you need to add them?

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in the short story the slip-over sweater by jesse stuart, the main character and narrator shan is friends with grace, an intelligent girl he has known since childhood and with whom he used to be in love.

at the beginning of the story, shan believes he’s no longer in love with grace, but loves jo-anne instead. in order to buy a slip-over sweater and have jo-anne wear it so that the other students would know she loved him too, shan takes a loan at the bank.

while jo-anne is wearing shan’s sweater, his friend grace starts to wear another popular boy’s one, roy’s sweater. because of that, the other students begin to pay attention to grace and compliment her perseverance and effort. they admire her for walking 5 miles to school every day, despite the weather, and still getting the best grades. shan, who knows all of that for a fact, says, as the narrator, ‘and i knew she had the durability and the toughness of a storm-battered mountain oak.’ he compares his friend’s strength – not only physical, but also of character – to an oak tree, whose wood is known for being sturdy.

as the story goes on, shan changes his behavior out of concern for the debt he has to pay at the bank. his new girlfriend jo-anne never asks him what is wrong nor offers any sort of . instead, she breaks up with shan for not being as fun as she thought he was supposed to be. grace, however, not only asks about shan’s problem, but him make the money he needs. shan can’t but notice how different the girls are and what a wonderful person grace is.   even though he used to find jo-anne prettier at the beginning of the story, he now says, ‘grace was as beautiful as our mountain was in april, prettier than a blossom of wild phlox or a mountain daisy.’ his comparing grace to a mountain or something that exists on a mountain (such as a mountain oak or daisy) certainly has important meaning since shan loves the mountain and everything about it and he knows the mountain thoroughly. shan also loves and knows grace as completely as he does the mountain.

answer: the tobacco industry has traditionally been one of the most important industries in north carolina and a backbone of the state's agricultural heritage. yet as the north carolina economy continues to transition from an agricultural economy to a manufacturing and, increasingly, service-based economy, the industry faces new challenges, both at home and abroad

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