Question

An object of mass 1.50 kg is attached to a spring is undergoing simple harmonic motion on a frictionless surface. The period of the motion is 0.70 s. At t = 0 s, the object is instantaneously at rest at x = +5.0 cm. In general, the position is given as x = xm cos (ωt + ϕ). Determine; a) The time it takes for that object to go from x = +5.0 cm to x = −5.0 cm in the first cycle of the motion. b) The angular speed, ω of the oscillation. c) The phase angle, ϕ. Write the position x (t) for this motion. d) The total energy of the system. e) The kinetic energy and the potential energy of the system at x = 3.0 cm. f) The speed of the object at x = 3.0 cm

Answer 1

Answer:

Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.