Part 1) Select the true statements from the list below. C] Gravity and the electrostatic force are examples of non-conservative forces. C] When an object moves around a closed path under the influence of a conservative force, the conservative force does not do any work on the object. C] Friction and air resistance are examples of nonconservative forces [:1 When nonconservative forces do work on a system, the mechanical energy of the system remains constant. Part 2) A block is released from rest at a height h = 1.83 m on an inclined plane making an angle 0 2 342 with the horizontal. The block has a mass m = 2.50 kg and the coefficient of kinetic friction between the block and the plane is M = 0.177. How much work does the gravitational force do on the block as it slides down the plane? W = :1 I Part 3) What is the rate at which the frictional force does work on the block just before it reaches the bottom of the slope? PM\" = Z W