Convert: (a) 200 lb · ft to N · m, (b) 350 lbft3 to kNm3,© 8 fth to mms. скачать в хорошем качестве

Convert: (a) 200 lb · ft to N · m, (b) 350 lbft3 to kNm3,© 8 fth to mms.

Convert: (a) 200 lb · ft to N · m, (b) 350 lbft3 to kNm3, © 8 fth to mms. Express the result to three significant figures. Use an appropriate prefix. Answer ``` Unit Conversions: #### (a) Convert *200 lb·ft* to *N·m* Conversion factors: 1 lb = 4.448 N 1 ft = 0.3048 m \[ 200 \times 4.448 \times 0.3048 = 271 \text{ N·m} \] *Result:* *271 N·m* --- #### (b) Convert *350 lb·ft³* to *kN·m³* Conversion factors: 1 lb = 4.448 N = 0.004448 kN 1 ft = 0.3048 m \[ 350 \times 0.004448 \times (0.3048)^3 \] \[ = 350 \times 0.004448 \times 0.02832 = 0.0442 \text{ kN·m³} \] *Result:* *44.2 mN·m³* (mN = millinewton) --- #### (c) Convert *8 ft·h* to *mm·s* Conversion factors: 1 ft = 304.8 mm 1 h = 3600 s \[ 8 \times 304.8 \div 3600 = 0.678 \text{ mm·s} \] *Result:* *0.678 mm·s* ```