A(n) 856 N crate is being pushed across a level floor by a force of 385 N at an angle
of 22◦ above the horizontal. The coefficient
of kinetic friction between the crate and the
floor is 0.17. The acceleration of gravity is 9.81 m/s^2

What is the magnitude of the acceleration
of the box? Answer in units of m/s^2

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.

Argon, neon, and xenon are examples of

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.