Appendix A. Answers to Supplemental Questions and Problems
Chapter 2
Section 2.1
Q1. (c)
Q2. (a)
Q3. Derived
P1. (a), (d), and (e) are correct.
Section 2.2
Q1. A conversion factor in the American Engineering system of units
Q2. Yes
Q3. lbf is force and lbm is mass, and the units are different.
Q4. In SI the magnitudes of many of the units are scaled on the basis of 10, but not in the AE system. Consequently, the units are often ignored in making conversions in SI.
Q5. In the AE system of units, 1 lbf; yes; no
Q6. 1000 kg
P1. 1, dimensionless
P2. 5.38 hr
P3. (a) 5.96 kg/m; (b) 16.0 kg/(m3)(s)
P4. 1.06 × 10–3 lbm/(ft)(s)
P5. 4.16 × 10–3 m3
Section 2.3
Q1. All additive terms on the right-hand side of an equation must have the same dimensions as ...
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