In a convection current, as the temperature of a fluid increases, what property of the fluid decreases?

How do we measure or think of speed in the united states?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

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.