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HW 12 – Report

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HW 12 – Report

General

Total number of students 41 Number of submitted HW 37 Number of not submitted HW 4 Number of problems 7+1 Average grade (w/o bonus) 95.27 Standard deviation of grades 5.23 Undergraduate (w/ bonus)

Average grade 102.88

Standard deviation of grades 7.99 Graduate

Average grade 93.25

Standard deviation of grades 9.67

Individual problem breakdown

Problem 7.33 7.1 7.50 7.55 7.75 7.93 7.108 C7.2*

Average grade 9.88 9.61 9.73 9.59 9.97 9.08 9.01 9.45 Standard deviation of grades 0.55 1.21 1.48 1.62 0.16 0.28 1.69 2.17

*Based on the number of students who attempted to solve the problem

Grade distribution

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Grade history

Submission history

Comments

• Many students considered the rod as a two dimensional body instead of a

cylinder. Consequently, they did not use the correct drag coefficient (P7.93).

• Many students used the wrong lift and drag coefficients (P7.108).

• 44% of undergraduate students attempted to solve the comprehensive problem,

all of them with good results.

Références

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