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An object with mass 2.0 kg is attached to aspring with spring stiffness constant k = 290 N/m and isexecuting simple harmonic motion. When the object is 0.020 m fromits equilibrium position, it is moving with a speed of 0.55m/s.
(a) Calculate the amplitude of the motion.
m
(b) Calculate the maximum velocity attained by the object. [Hint:Use conservation of energy.]
m/s
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An ideal gas, Cp = (7/2)R, is heated in a steady-flow heat exchanger from 70°C to 190°C by another stream of the same ideal gas which enters at 320°C. The flow rates of the two streams are the same, and heat losses from the exchanger are negligibl..
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