Lab: Assignment

1. Convert the following using the factor label method. Show your work clearly.

a. 50 ft = m
b. 62,357 in² = square meters
c. 10 lbf/ ft² (or psf) = lbf/ in² (or psi)
d. 101.13 kPa = lbf/ in² (or psi)
e. 25,000,000 J (joules) = kWh (kilowatt-hours)

2. Convert the following using the factor label method. Show your work clearly.

a. 440,000 W (watts) = MW (megawatts)
b. 7 X 10^-12 seconds = nanoseconds
c. 512 milliamps = amps
d. 12 light years = meters

3. Round the following numbers to 3 significant figures:

a. 0.3823457
b. 68.9691
c. 36.757

4. Perform the following calculations, reporting the answers with the correct number of significant figures:

a. 67.42 + 3345
b. 485.129 -16.89
c. 34.532 * 6.1

5. Specific energy (per unit mass) of flowing fluid can be expressed as h + ½ v² + gz, where h is specific enthalpy (J/kg), v is velocity (m/s), g is gravitational acceleration (m/s²) and z is elevation (m). Show that all three terms have same (consistent) units.