Consider the two-degrees-of-freedom mass-spring system below. Assume m₁ = 30 kg, m2 = 35 kg. If the second natural frequency of the system is 100 rad/s, the value of stiffness k is wwwww k₁=k Ţ x₂₁ (t) k₂= k Ţ x₂ (t) k₂= k 174.41 kN/m 107.38 kN/m EM 140.93 kN/m 39.24 kN/m 73.62 kN/m m₂ m₂ mm

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Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.