#### Convert each of the following to three significant figures: (a) 20 lb·ft to N·m, (b) 450 lb/ft³ to kN/m³, and (c) 15 ft/h to mm/s.

**Solution:**

a)

b)

c)

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# Problem 1-13| General Principles| Engineering Mechanics: Statics| RC Hibbeler

#### Convert each of the following to three significant figures: (a) 20 lb·ft to N·m, (b) 450 lb/ft³ to kN/m³, and (c) 15 ft/h to mm/s.

**Solution:**

a)

b)

c)

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