1.The 10-lb lamp fixture is suspended from two springs, each having an unstretcfhed length of 4 ft and stiffness of k=5lb/ft. Determine the angle theta for equilibrium.
2.What are reasons for difference in the coefficient of kinetic friction on horizontal surface with a hanging mass at constant velocity compared to object one on incline
3.A 1-m^3 volume tank contains a mixture of 18.32 moles of oxygen, 16.40 moles of Nitrogen, and 6.15 moles of carbondioxide. What is the partial pressure of each gass componet at 25 degrees?