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Loncapa 1 Questions And Answers With Verified Solutions Already Passed!!!
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Loncapa 1 Questions And Answers With Verified Solutions Already Passed!!!
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Loncapa 1 Questions And Answers WithVerified Solutions Already Passed!!!
a) Bicyclists' speed in km/h
Speed in kilometers per hour:
34.4 mi/h×1.61 kmmi=55.4 km/h34.4 \, \text{mi/h} \times 1.61 \,
\frac{\text{km}}{\text{mi}} = 55.4 \, \text{km/h}34.4mi/h×1.61mikm=55.4km/h
✔✔
b) Bicyclists' speed in m/s
Speed in meters per second:
Convert from km/h to m/s:
55.4 km/h×1000 m1 km×1 h3600 s=15.38 m/s55.4 \, \text{km/h} \times \frac{1000
\, \text{m}}{1 \, \text{km}} \times \frac{1 \, \text{h}}{3600 \, \text{s}} = 15.38 \,
\text{m/s}55.4km/h×1km1000m×3600s1h=15.38m/s ✔✔
a) Volume of the room in cubic feet
Given room dimensions: 42.0m × 20.0m × 14.0m
Volume in cubic meters:
V=42.0×20.0×14.0=11,760 m3V = 42.0 \times 20.0 \times 14.0 = 11,760 \,
\text{m}^3V=42.0×20.0×14.0=11,760m3
Conversion to cubic feet:
1 m=3.28 ft1 \, \text{m} = 3.28 \, \text{ft}1m=3.28ft, so
V=11,760 m3×(3.28)3=415,000 ft3V = 11,760 \, \text{m}^3 \times (3.28)^3 =
415,000 \, \text{ft}^3V=11,760m3×(3.28)3=415,000ft3
✔✔ 4.15E5 ft³
b) Mass of air in the room in pounds
Density of air: 1.20 kg/m³
Mass in kg:
Mass=1.20 kg/m3×11,760 m3=14,112 kg\text{Mass} = 1.20 \, \text{kg/m}^3
\times 11,760 \, \text{m}^3 = 14,112 \,
\text{kg}Mass=1.20kg/m3×11,760m3=14,112kg
Conversion to pounds:
14,112 kg×2.20 lbkg=31,114 lb14,112 \, \text{kg} \times 2.20 \,
\frac{\text{lb}}{\text{kg}} = 31,114 \, \text{lb}14,112kg×2.20kglb=31,114lb
✔✔ 3.11E4 lb
a) Ratio of surface areas A2/A1
Given the radius of sphere 2 is 3.32 times that of sphere 1, the ratio of surface areas
is:
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