%°• |ı. ۱۲:۲۵ ) العنوان оне hot small copper ball [c in kJ/kg.°C, k in W/m.°C] is suddenly placed in water maintained at 100 °C. The convection heat transfer coefficient is h in W/m². ºC. Derive equation to calculate the time required to reduce ball to temperature T. ۲/۱ ||| Don ox T =T el A ☑ M

4. Referring to the property table below for saturated liquid, using linear interpolation to determine the following values: a. Pat T = 94°C b. U at P = 0.4285 bar C. vat U= 315.67 kJ/kg Internal Energy, Specific Volume, v x 10 (m*/kg) U ("C) (bar) (kJ/kg) 0.3858 1.0259 313.90 75 80 0.4739 1.0291 334.86 85 0.5783 1.0325 355.84 90 0.7014 1.0360 376.85 95 0.8455 1.0397 397.88 100 1.014 1.0435 418.94

fet), force force, f 10 Newt. m2 f k, 10sec m, = 10 kg, ma= 20 kg , b= 20 Newton m/sec k, = 30 Newton kz = 60 Newton z, and z are measured with respeet to eguilibrium conditions and all imitial conditions are zero, 1) Write the Newton's second Lau for m, amd m2 2) Derive a statespace represrentation of the conditions : eystem fallowing 2a) only z, is measured 26) only z, is measured 2c) (2,-z,) is measured. un der 3) Derive the following transfor fumetione fG) z,(5) Go G,6) ? G6) ? 4) Describe a mechanical device that can be used to implement the external force fee) as shoun'a bove. 5) Using (Csim) function of MATLAB, plot z,(t), 2, (t)- =, (+)] Zz (t) and

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