An object is moving at a velocity of 23m/s. It accelerates to a velocity of 85m/s over a time of 8.3s. What acceleration did it experience?

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.

What sort of waves exhibit the doppler effect?

Which of these metals are magnetic?