I have a question :) In the system shown in the figure, the masses and springs are identical. System in vertical axis
oscillates. The weights of objects and springs and the position potential
Lagrange the equation (s) of motion of the system, neglecting its energies
using the method. Also determine the frequency equation of the system.
(The objects move according to the equation x = sbt. coswt and that the friction
accept that it is not)

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A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.

Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano.the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? positive force → balanced force → negative force negative force → balanced force → positive force positive force → unbalanced force → negative force negative force → unbalanced force → positive force