The world's largest bird is the ostrich, whose mass can be as much as 156.5 kilograms. What is the approximate weight in pounds?

The temperature of ambient air in a certain location is measured to be $-40^{\circ} \mathrm{C}$. Express this temperature in Fahrenheit ($^{\circ} \mathrm{F}$), Kelvin (K), and Rankine (R) units.

A 150-lbm astronaut took his bathroom scale (a spring scale) and a beam scale (compares masses) to the moon where the local gravity is g = 5.48 ft/s^2. Determine how much he will weigh (a) on the spring scale and (b) on the beam scale. Answers: (a) 25.5 lbf, (b) 150 lbf

A gas enters a compressor that provides a pressure ratio (exit pressure to inlet pressure equal to $\hspace{1mm} 8. \hspace{1mm}$ If a gage indicates the gas pressure at the inlet is $\hspace{1mm} 5.5 \hspace{1mm}$ psig, what is the absolute pressure, in psia, of the gas at the exit? Atmospheric pressure is $\hspace{1mm} 14.5 \hspace{1mm} lbf/in^2.$

Which is not a soil property? A. color B. pH C. texture D. topography

Which process causes river gravel to have rounded edges? A. abrasion B. acid rain C. ice wedging D. oxidation