Chapter 2, Problem 20P

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Calculate the forces in members BC, BG & FG of the truss shown using the Method of Sections. For your answer, provide atruss diagram of the calculated member forces and indicate whether the member is in Tension (+) or Compression (-)

Select the speed, feed and depth of the cut to turn wrought, low carbon steel (hardness of 200 BHN) on lathe with AISI tool material of HSS M2 or M3. (Hint: refer to Chapter 21 for recommended parameters).

Only question 1&2

Only question 3&4

The enthalpy of fusion for water is 6.01 kJ/mol. Calculate the entropy change for 1.0 mole of ice melting to form liquid at 273 K

Calculate the entropy change for 1.00 mol of an ideal gas expanding isothermally from a volume of 24.4 L to 48.8 L.