name 3 examples of machines that requires you to apply force to the wheel of the object and 3 examples of machines that require you to apply force to the axle of an object

The amount of potential energy possessed by an elevated object is equal to what?

Frequency of electromagnetic waves that a radio station is assigned is called

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.