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QUIZ 5 – Report

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Academic year: 2022

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QUIZ 5 – Report

General

Total number of students 24

Attended 21

Missed 3

Average grade 7.67

Standard deviation of grades 1.29

Grade distribution

Grade history

(2)

Attendance history

Comparison with last three years

Comments

• Few students used the mass flow rate instead of the volumetric flow rate in the equation 𝑄𝑄 =𝑉𝑉𝑉𝑉 in order to find 𝑉𝑉𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒.

• Some students did not go through all the steps in applying the force balance; by skipping the decomposition of the forces according to the coordinate system, they made mistakes with the sign.

• Some students did not include 𝑉𝑉𝐶𝐶𝐶𝐶, which was due to the rotation of the system and equal in magnitude to 𝑅𝑅𝑅𝑅.

• Some students did not include the term 𝑅𝑅𝑅𝑅 within the velocity part; instead, they added it to the torque.

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