Experiment shows that the frictional drag force F of a car moving in air depends on the velocity V of it's motion, density P of the air through which it travels, and the cross-sectional area of the car. if the force is F = KP^x V^2y A ^z. Where x, y and z are the integers and k is a dimensionless constant, find the values of x, y and z.

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.