Match these items. 1. rock made by dissolved material settling out of water metamorphic

2. outer shell of the earth core

3. innermost layer of earth igneous

4. rock cooled from magma crust

5. interior layer of rock mantle

6. rock changed by heat and pressure sedimentary

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.