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sample-final-f03

# sample-final-f03 - AER E 160 Final Fall `03 Name Section...

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AER E 160 Final Fall ‘03 Name & Section ENGR. PROB.: / 50 PROGRAMMING / 50 TOTAL: /100 DIRECTIONS : The reference sheet, notes from the first two exams, and one new 8.5x11 sheet of notes may be consulted during the exam. Express all answers in the proper number of significant digits . Engineering Problems 1) (15%) The L-shaped beam shown is in static equilibrium and its mass is negligible. The beam is supported by a cable that runs from point A to point B and a pin connector at point C. A 680.0 kg mass is hung from one end as shown. The cable makes a 65 ° angle with the horizon. A 65.0 ° B C a) Draw a free body diagram of the beam. b) Write a sum of the moments equation about point C and solve for the tension in the cable. 4.00 m 3.00 m 680.0 kg

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AER E 160 Final Fall ‘03 Page 2 Name 2) (10%) A surveyor uses a sextant to sight the top of the mountain at an angle of elevation of 35.0 ° . On a level plain, the surveyor moves 1000.0 feet farther away from the mountain and determines the angle of elevation to be 30.0 ° . Calculate the height of the mountain in meters.
AER E 160 Final Fall ‘03 Page 3 Name 3) (25%) Your company bought a machine on January 1, 2001 for \$40,000. It was used for two years

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sample-final-f03 - AER E 160 Final Fall `03 Name Section...

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