If you become trapped inside a structure during an earthquake what should you do?

2) Suppose that on the 500-hpa surface the relative vorticity at a certain location at 45º N latitude is increasing at a rate of 3 x 10-6 s-¹ per 3 hrs. The wind is from the southwest at 20 m/s and the relative vorticity decreases toward the northeast at a rate of 4 x 10-6 s-¹ per 100 km. Use the quasi- geostrophic vorticity equation to estimate the horizontal divergence at this location on a ß-plane.

What volume of Aluminum (d=2.70g/cm^3) would be required to balance out 1cm^3 of Osmium(d=22.6g/cm^3) on a 2-pan lab balance?

If the same-sized force is made to act over four times more area, the pressure      decreases to 1/4th the original amount      increases to 4 times the original amount      stays the same as the original amount     increases to 1/4 the original amount