assignment 3

course phy 231

`q001 A straight line connects the points (3, 5) and (7, 17), while another straight line continues on from (7, 17) to the point (10, 29). Which line is steeper and on what basis to you claim your result?......!!!!!!!!...................................

Your work has been received. Please scroll through the document to see any inserted notes (inserted at the appropriate place in the document, in boldface) and a note at the end. The note at the end of the file will confirm that the file has been reviewed; be sure to read that note. If there is no note at the end, notify the instructor through the Submit Work form, and include the date of the posting to your access page.

RESPONSE -->

7,17 is steeper. as it is the central point and at that point as it goes to 10,29 it becomes less steep

confidence assessment: 1

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As before, there are additional questions in this exercise. If you haven't already done so, you should go back and complete it.

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assignment 3

course phys 231

This ends the third assignment. ???~???P??w??

Your work has been received. Please scroll through the document to see any inserted notes (inserted at the appropriate place in the document, in boldface) and a note at the end. The note at the end of the file will confirm that the file has been reviewed; be sure to read that note. If there is no note at the end, notify the instructor through the Submit Work form, and include the date of the posting to your access page.

assignment #003

003. Misc: Surface Area, Pythagorean Theorem, Density

qa areas volumes misc

12-31-2007

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15:11:06

`q001. There are 10 questions and 5 summary questions in this assignment.

What is surface area of a rectangular solid whose dimensions are 3 meters by 4 meters by 6 meters?

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RESPONSE -->

108

confidence assessment: 2

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15:13:06

`q002. What is the surface area of the curved sides of a cylinder whose radius is five meters and whose altitude is 12 meters? If the cylinder is closed what is its total surface area?

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RESPONSE -->

120

confidence assessment: 2

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15:15:08

`q003. What is surface area of a sphere of diameter three cm?

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RESPONSE -->

confidence assessment: 3

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15:18:04

`q004. What is hypotenuse of a right triangle whose legs are 5 meters and 9 meters?

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RESPONSE -->

106

confidence assessment: 2

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15:20:13

12-31-2007 15:20:13

`q005. If the hypotenuse of a right triangle has length 6 meters and one of its legs has length 4 meters what is the length of the other leg?

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NOTES ------->

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assignment #003

003. Misc: Surface Area, Pythagorean Theorem, Density

qa areas volumes misc

12-31-2007

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16:16:15

`q005. If the hypotenuse of a right triangle has length 6 meters and one of its legs has length 4 meters what is the length of the other leg?

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RESPONSE -->

confidence assessment: 2

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16:23:21

`q006. If a rectangular solid made of a uniform, homogeneous material has dimensions 4 cm by 7 cm by 12 cm and if its mass is 700 grams then what is its density in grams per cubic cm?

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RESPONSE -->

2.08 cubic cm

confidence assessment: 2

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16:32:59

`q007. What is the mass of a sphere of radius 4 meters if its average density is 3,000 kg/cubic meter?

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RESPONSE -->

750

confidence assessment: 0

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16:37:30

`q008. If we build a an object out of two pieces of material, one having a volume of 6 cm^3 at a density of 4 grams per cm^3 and another with a volume of 10 cm^3 at a density of 2 grams per cm^3 then what is the average density of this object?

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RESPONSE -->

confidence assessment: 0

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16:39:26

`q009. In a large box of dimension 2 meters by 3 meters by 5 meters we place 27 cubic meters of sand whose density is 2100 kg/cubic meter, surrounding a total of three cubic meters of cannon balls whose density is 8,000 kg per cubic meter. What is the average density of the material in the box?

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RESPONSE -->

confidence assessment: 2

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16:39:49

`q010. How many cubic meters of oil are there in an oil slick which covers 1,700,000 square meters (between 1/2 and 1 square mile) to an average depth of .015 meters? If the density of the oil is 860 kg/cubic meter the what is the mass of the oil slick?

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RESPONSE -->

confidence assessment: 2

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16:42:09

`q011. Summary Question 1: How do we find the surface area of a cylinder?

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RESPONSE -->

2pi (radius)r (height)h + 2pir^2

confidence assessment: 3

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16:43:29

`q012. Summary Question 2: What is the formula for the surface area of a sphere?

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RESPONSE -->

S = 4pir^2

confidence assessment: 3

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16:44:50

`q013. Summary Question 3: What is the meaning of the term 'density'.

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RESPONSE -->

density is mass per unit volume

d=m/v

confidence assessment: 3

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16:48:55

`q014. Summary Question 4: If we know average density and mass, how can we find volume?

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RESPONSE -->

mass/density=v

confidence assessment: 2

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16:50:04

`q015. Explain how you have organized your knowledge of the principles illustrated by the exercises in this assignment.

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RESPONSE -->

i used my knowlede of density, mass and volume and there formulas to figure out the answers to the problems presented

confidence assessment: 2

................................................."

Your work does not include the given solutions or self-critiques. However it seems clear that you understand this material.

In future exercises you need to give a concise summary of your thinking on each solution.

&#To run the program correctly you click on the Next Question/Solution button (top left), enter your response in the Answer box (the box at top right), click on the Enter Response button (above the top right box), then again on the Next Question/Solution botton (top left) to see the solution, and finally enter your response or self-critique in the Answer box and click on Enter Response.
You then start the process over with the next question, clicking on the Next Question/Solution button at top left, etc.

assignment 3

As before, there are additional questions in this exercise. If you haven't already done so, you should go back and complete it.

assignment 3

Your work does not include the given solutions or self-critiques. However it seems clear that you understand this material. In future exercises you need to give a concise summary of your thinking on each solution.

Your work does not include the given solutions or self-critiques. However it seems clear that you understand this material.

In future exercises you need to give a concise summary of your thinking on each solution.