Knowing that p1 = 18.8 kn and p2 = 6.0 kn, determine the force in each truss member using the method of joints. enter the force in member ab below. express your answer in kn to the nearest 100 n. enter a positive number for tension or a negative number for compression.
energy can cross the boundaries of a closed system in the form of heat and mass
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answer: make you irritable