Physics, 15.02.2020 02:27, dumngirl2504
And object is undergoing simple harmonic motion along the x-axis. Its position is described as a function of time by x(t) = 1.4 cos(3.5t – 1.4), where x is in meters, the time, t, is in seconds, and the argument of the cosine is in radians.
(a) What is the object’s velocity, in meters per second, at time t = 0?
(b) Calculate the object’s acceleration, in meters per second squared, at time t = 0.
Answers: 3
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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.
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Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j
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And object is undergoing simple harmonic motion along the x-axis. Its position is described as a fun...
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