Question

1. 0.000230 × 10³ h to mh
2. 1040 mm² to cm²
3. 45 × 10³ hz to mhz
4. 12.0 kg to lb
5. 120 m to ft
6. 2.50 ft to m
7. 3.50 hp to kw
8. 5.30 kw to hp
9. 84.0 cm to ft
10. 6000 hp to mw
11. 30.0 × 10³ j to ft·lb
12. 10 km to mi
13. 0.0343 hp to w

Explanation:

Step1: Recall conversion factors

1 H = 1000 mH, 1 cm² = 100 mm², 1 MHz = 10⁶ Hz, 1 kg = 2.205 lb, 1 m = 3.281 ft, 1 hp = 0.746 kW, 1 J = 0.738 ft - lb, 1 km = 0.621 mi, 1 hp = 746 W

Step2: Solve 32

$0.000230\times10^{3}H=0.23H$, $0.23H\times1000 = 230mH$

Step3: Solve 33

$1040mm^{2}\div100=10.4cm^{2}$

Step4: Solve 34

$45\times10^{3}Hz = 45000Hz$, $45000Hz\div10^{6}=0.045MHz$

Step5: Solve 35

$12.0kg\times2.205 = 26.46lb$

Step6: Solve 36

$120m\times3.281 = 393.72ft$

Step7: Solve 37

$2.50ft\div3.281\approx0.762m$

Step8: Solve 38

$3.50hp\times0.746 = 2.611kW$

Step9: Solve 39

$5.30kW\div0.746\approx7.10hp$

Step10: Solve 40

$84.0cm = 0.84m$, $0.84m\times3.281 = 2.75604ft$

Step11: Solve 41

$6000hp\times0.746 = 4476kW=4.476MW$

Step12: Solve 42

$30.0\times10^{3}J\times0.738 = 22140ft - lb$

Step13: Solve 43

$10km\times0.621 = 6.21mi$

Step14: Solve 44

$0.0343hp\times746 = 25.5878W$

Answer:

1. 230 mH
2. 10.4 cm²
3. 0.045 MHz
4. 26.46 lb
5. 393.72 ft
6. 0.762 m
7. 2.611 kW
8. 7.10 hp
9. 2.75604 ft
10. 4.476 MW
11. 22140 ft - lb
12. 6.21 mi
13. 25.5878 W