The equivalent resistance of two resistances in series 15.5 0hm and 1.2 ohm in parallel the higher resistance is​

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Which statement correctly describes the relationship between frequency and wavelength?

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.