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Find the slope of the line defined by: $latex y=2x^5 + 3x^4 + 2x^2 + 3x + 1$

(A)$latex m = 2x^6 + 3x^4 + 2x^3 + 3$

(B) $latex m = 10x + 12x^2 + 4x^4 + 3$

(C) $latex m = 10x^5 + 12x^4 + 4x^2 + 3$

(D) $latex m = 10x^4 + 12x^3 + 4x + 3$

The Correct Answer

What the standard units used when using the Reynolds Number?

(A) ft/s2 (B) centipoise (C) kg/s (D) None

Correct Answer: D

What is the elongation of a 2 meter aluminum bar when it has been stressed to 512 MPa? (E = 69 GPa)?

(A) 1.5 cm (B) 2.0 cm (C) 1.0 cm (D) 1.7 cm

Correct Answer: A

Which of the following is FALSE with regards to creep I. May involve the sliding of whole grains II At high stresses creep is controlled by the movement of vacancies. III Also known as hot flow IV Creep is a time dependent deformation

(A) I (B) II (C) III (D) IV

Correct Answer: C

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