Only give answer no reserch thanx
radio waves and microwaves are similar because they both have

high frequencies and high energy.

low frequencies and low energy.

high frequencies and low energy.

low frequencies and high energy.

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.