Use the following to answer questions: 
-(Table: Value of the Marginal Product of Labor and Demand) In the figure Value of the Marginal Product of Labor and Demand, the total product of labor is shown for the hourly production of power cords. Assume that the market for power cords is perfectly competitive. If the price of a power cord is $2, the value of the marginal product for the fifth worker is:
Definitions:
5th Wheel
A pivoting plate attached to a vehicle's chassis (like those on semi-trucks) that enables the attachment and swivel motion of a trailer or similar component.
Locking Mechanism
A device or system designed to prevent movement or separation by securing components in place, commonly used in various types of machinery and equipment.
Drawbar Eye
The coupling eye that engages to either a pintle hook or the shank below a heavy-duty ball hitch assembly.
A-train Combination
A specific truck and trailer arrangement where a standard tractor pulls a semi-trailer which is connected to a "pup" trailer by a converter dolly, used to increase cargo capacity.
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