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# Math 110 week 3 forum American Miitary University

Topic 1: Grade, Pitch and Slippery Slopes

This is an opportunity to investigate the many ways that the concept of "slope" touches our daily lives. Click on "View Full Description and attachments" below for the directions and questions.

Open the attached file. Pick ONE of the questions that has not already been answered by a classmate. Click on Start a New Conversation and make the problem number and the topic (#1 Highway Grade) the subject of your post, so that people can tell at a glance which problems have already been answered.

In at least 250 words, give a full and complete answer to the question. I would like you to find out about the material and describe the answer in your own words. Most of these topics require some research. Don't forget that you must give attribution to your source. Be sure to cut and paste the URL of the site from which you got the information. Sometimes other students decide that a topic is interesting and would like to learn more about it. Your source will provide them with a good starting point. This initial post is worth 6 points.

You must also give a substantive response of at least 50 words to two classmate's posts (worth 2 points each). You may ask questions to elicit a more in-depth explanation, add additional information to your own posting in response to questions, share additional knowledge on another posting or share an example from your own life related to the topic. Simply saying "Good post!" will not earn any points.

Please sign ALL your Forum posts with the name that you like to be called - it makes it so much easier for the rest of us to address you by your preferred name when we respond.

Questions :

When you answer these, please incorporate enough of the question so that we all can tell what you’re talking about without having to open this file.
Simply saying “#40 All of them” is not very informative!

1. What is meant by the grade of a highway?

2. How might the grade of a highway influence the prices set by trucking companies to haul freight over the route?

3. What is a runaway truck ramp?

4. Why are residential roads higher in the middle than at the curb?

5. What is the generally accepted maximum grade for wheelchair ramps?

8. What are some of the steepest adhesion railroads in the world and where are they located? (just give us one and leave the others for classmates!)

9. What is a cog railway?

10. Where is the world’s highest cog railway?

11. Where is the world’s steepest cog railway?

12. How does a “rack-and-adhesion” railway work?

13. Name 2 types of transportation that are frequently called cable cars?

14. How do the San Francisco cable cars work?

15. How can canals be used to help boat climb hills?

16. How does a canal lock work?

17. How high above sea level is Lake Gatun in the Panama Canal?

PITCH

18. How steep does a roof have to be to be considered “pitched”?

19. What distinguishes a “salt box” house?

20. What distinguishes an A-frame house?

21. You may have read Anne of Green Gables – what’s a gable?

22. Why are gable end roofs among the worst roof designs for hurricane regions?

23. What are some advantages & Disadvantages of a Dutch Hip Roof Style?

24. Why are roof lines different in New England and the Southwest?

25. About how steep is the average residential staircase?

SLIPPERY SLOPES

26. About how steep is the angle of the slope for “Extreme Skiers”?

27. In the US, about how steep is a green, beginners’ slope?

28. In the US, about how steep is a blue, intermediate slope?

29. In the US, about how steep is a black, expert slope?

30. I can ski a double black diamond slope at home in Indiana. I can’t wait to ski one in
(02-18-2016, 07:18 AM)math110help Wrote:  Topic 1: Grade, Pitch and Slippery Slopes

This is an opportunity to investigate the many ways that the concept of "slope" touches our daily lives. Click on "View Full Description and attachments" below for the directions and questions.

Open the attached file. Pick ONE of the questions that has not already been answered by a classmate. Click on Start a New Conversation and make the problem number and the topic (#1 Highway Grade) the subject of your post, so that people can tell at a glance which problems have already been answered.

In at least 250 words, give a full and complete answer to the question. I would like you to find out about the material and describe the answer in your own words. Most of these topics require some research. Don't forget that you must give attribution to your source. Be sure to cut and paste the URL of the site from which you got the information. Sometimes other students decide that a topic is interesting and would like to learn more about it. Your source will provide them with a good starting point. This initial post is worth 6 points.

You must also give a substantive response of at least 50 words to two classmate's posts (worth 2 points each). You may ask questions to elicit a more in-depth explanation, add additional information to your own posting in response to questions, share additional knowledge on another posting or share an example from your own life related to the topic. Simply saying "Good post!" will not earn any points.

Please sign ALL your Forum posts with the name that you like to be called - it makes it so much easier for the rest of us to address you by your preferred name when we respond.

Questions :

When you answer these, please incorporate enough of the question so that we all can tell what you’re talking about without having to open this file.
Simply saying “#40 All of them” is not very informative!

1. What is meant by the grade of a highway?

2. How might the grade of a highway influence the prices set by trucking companies to haul freight over the route?

3. What is a runaway truck ramp?

4. Why are residential roads higher in the middle than at the curb?

5. What is the generally accepted maximum grade for wheelchair ramps?

8. What are some of the steepest adhesion railroads in the world and where are they located? (just give us one and leave the others for classmates!)

9. What is a cog railway?

10. Where is the world’s highest cog railway?

11. Where is the world’s steepest cog railway?

12. How does a “rack-and-adhesion” railway work?

13. Name 2 types of transportation that are frequently called cable cars?

14. How do the San Francisco cable cars work?

15. How can canals be used to help boat climb hills?

16. How does a canal lock work?

17. How high above sea level is Lake Gatun in the Panama Canal?

PITCH

18. How steep does a roof have to be to be considered “pitched”?

19. What distinguishes a “salt box” house?

20. What distinguishes an A-frame house?

21. You may have read Anne of Green Gables – what’s a gable?

22. Why are gable end roofs among the worst roof designs for hurricane regions?

23. What are some advantages & Disadvantages of a Dutch Hip Roof Style?

24. Why are roof lines different in New England and the Southwest?

25. About how steep is the average residential staircase?

SLIPPERY SLOPES

26. About how steep is the angle of the slope for “Extreme Skiers”?

27. In the US, about how steep is a green, beginners’ slope?

28. In the US, about how steep is a blue, intermediate slope?

29. In the US, about how steep is a black, expert slope?

30. I can ski a double black diamond slope at home in Indiana. I can’t wait to ski one in