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A.7.2. Apply (APPENDIX A pp. 878).

A1. Convert the values on the left to the units at right, using a table of conversions. a. 50 miles =? km b. 15 knots = ? m s–1 c. 30 lb in–2 =? kPa d. 5000 kW =? horsepower e. 150 lbMass =? kg f. 150 lbForce =? N g. 12 ft = ? m h. 50 km h–1 = ? m s–1

Respuesta :

Answer:

a) 80 km

b) 7.65 m/s

c) 206.7 kPa

d) 6700 horsepower

e) 67.3 kg

f) 666 N

g) 3.6 m

h) 13.88 m/s

Explanation:

a. we know that 1 mile = 1.6 km

    [tex]50 miles = (50 \times 1.6) km = 80 km[/tex]

b. we know that 1 knot = 0.51 m/s

    [tex]15 knots = (15 \times 0.51) m/s = 7.65 m/s[/tex]

c. we knwo that 1 lb/inch^2 = 6.89 kPa

    [tex]30 lb/inch2 = (30 \times 6.89) kPa = 206.7 kPa

[/tex]

d. we know that 1 kilowatt = 1.34 horsepower

[tex]5000 kW = (5000 \times 1.34) horsepower = 6700 horsepower[/tex]

e. we know that 1 lbMass = 0.45 kg

[tex]150 lb = (150 \times 0.45) kg = 67.3 kg[/tex]

f. we know that 1 lbForce = 4.44 N

 [tex]150 lbf = (150 \times 4.44) N = 666 N[/tex]

g.  we know that 1 ft = 0.3 m

 [tex]12 ft = (12\times 0.3) m = 3.6 m[/tex]

h. we know that 1 km/h = 0.27 m/s

[tex]50 km/h = (50\times 0.27) m/s = 13.88 m/s[/tex]

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