The neck is an example of a simple machine in the human body true or false

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.