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EGT 300 – Statics and Strength of Materials 1. Two structural mebers B and C are bolted to the brackedt A. Knowing that the tension in member B is 2000 N and the tension in C is 1500 N, determine the magnitude (in N.) of the resultant force acting on the bracket. 2. A hoist trolley is subjected to the three forces shown. Knowing that P = 250 lb, determine the magnitude of the resultant (in lb.). 3. The collar A may slide freely on the horizontal smooth rod. Determine the magnitude of the force P (in kN.) required to maintain equilibrium when the dimension c is 8 m. 4. Determine the volume (in mm3) of the solid obtained by rotating the area of the figure show, about the x axis. 5. In the previous problem (6), determine the volume (in dm3) of the solid, by rotating the area about the y axis. 6. Using the method of joints, determine the force (in kN) in the member CA of the truss shown. 7. The coefficient of friction between the block and the rail are µs =0.30 and µk = 0.25. Find the magnitude of the smallest force P (in N) required to start the block up to the rail. 8. Determine the momentum at the beam support B (in lb.in) for the given loading.

## EGT 300 – Statics and Strength of Materials 1. Two structural mebers B and C are bolted to the brackedt A. Knowing that the tension in member B is 2000 N and the tension in C is 1500 N, determine the magnitude (in N.) of the resultant force acting on the bracket. 2. A hoist trolley is subjected to the three forces shown. Knowing that P = 250 lb, determine the magnitude of the resultant (in lb.). 3. The collar A may slide freely on the horizontal smooth rod. Determine the magnitude of the force P (in kN.) required to maintain equilibrium when the dimension c is 8 m. 4. Determine the volume (in mm3) of the solid obtained by rotating the area of the figure show, about the x axis. 5. In the previous problem (6), determine the volume (in dm3) of the solid, by rotating the area about the y axis. 6. Using the method of joints, determine the force (in kN) in the member CA of the truss shown. 7. The coefficient of friction between the block and the rail are µs =0.30 and µk = 0.25. Find the magnitude of the smallest force P (in N) required to start the block up to the rail. 8. Determine the momentum at the beam support B (in lb.in) for the given loading.

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Explain ethical egoism. Identify and explain at least one serious problem with the theory. Then answer this question: Do you think that ethical egoism is true? Why or why not? Use at least one example to support your line of reasoning. Papers will be graded on a scale of 0-100 using the following grading rubric: 1. mechanics: The paper is written with correct grammar, punctuation, spelling and other mechanical points. (10 points) 2. style: The sentences are clear and concise, using university-level language. (10 points) 3. coherence: The ordering of the paragraphs and the ordering of the sentences within the paragraphs make the ideas presented easy to understand. (10 points) 4. logic: The paper sticks to answering the assigned question and does not drift into irrelevant or marginally relevant issues. (20 points) 5. knowledge: The paper contains a clear, careful and thorough explanation of the moral theory. (25 points) 6. ideas: The paper includes a clearly stated conclusion and a coherent explanation of the reasons to support that conclusion. (This portion of your paper is addressing the last three questions in either assigned topic.) (25 points)

## Explain ethical egoism. Identify and explain at least one serious problem with the theory. Then answer this question: Do you think that ethical egoism is true? Why or why not? Use at least one example to support your line of reasoning. Papers will be graded on a scale of 0-100 using the following grading rubric: 1. mechanics: The paper is written with correct grammar, punctuation, spelling and other mechanical points. (10 points) 2. style: The sentences are clear and concise, using university-level language. (10 points) 3. coherence: The ordering of the paragraphs and the ordering of the sentences within the paragraphs make the ideas presented easy to understand. (10 points) 4. logic: The paper sticks to answering the assigned question and does not drift into irrelevant or marginally relevant issues. (20 points) 5. knowledge: The paper contains a clear, careful and thorough explanation of the moral theory. (25 points) 6. ideas: The paper includes a clearly stated conclusion and a coherent explanation of the reasons to support that conclusion. (This portion of your paper is addressing the last three questions in either assigned topic.) (25 points)

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Of the following transitions in the Bohr hydrogen atom, the __________ transition results in the absorption of the lowest-energy photon. A) n = 1 n = 6 B) n = 6 n = 1 C) n = 6 n = 5 D) n = 3 n = 6 E) n = 1 n = 4