In a hurricane, the mean sustained wind velocity v (in meters per second) can be modeled by v(p) = 6.31013-p. where p is the air pressure in millibars at the center of the hurricane. Estimate the air pressure, p, at the center of the hurrican when the mean sustained wind velocity, (v(p)), is 60 meters per second. Round to the nearest hundredth.

The data shown below were obtained by time-lapse photography on a highway. Use regression analysis to fit these data to the Greenshields model and determine the following. Speed (mi/h) Density (veh/mi) 18.4 26.7 33.4 41.1 53.8 56.0 (a) the mean free speed (in mi/h) mi/h 80 65 50 36 15 10 (b) the jam density (in veh/mi) X The response you submitted has the wrong sign. veh/mi (c) the capacity (in veh/h) veh/h (d) the speed at maximum flow (in mi/h) mi/h

At its peak, a tornado is 68 m in diameter and has 470 km/h winds. What is its frequency in revolutions per second?

The density of aluminum is 2.7 g/cm3g/cm3. What is the mass of a cube of aluminum that is 5.000 cmcm on a side? (Recall that density is mass divided by volume.)