Four Charged Particles (Two Having a Charge +Q and Two

question 49

Multiple Choice

Four charged particles (two having a charge +Q and two having a charge -Q) are arranged in the xy-plane as shown in the figure. The charges are all equidistant from the origin. The amount of work required to move a positively charged particle from point P to point O (both of which are on the z-axis) is

• A)zero.
• B)positive.
• C)negative.
• D)depends on the path in which the charged is moved.

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Definitions:

Reorder Point

The inventory level at which a new order should be placed to replenish stock before it runs out, considering lead times.

Average Inventory

The mean amount of inventory held over a specific period, used to calculate turnover rates and order quantities.

Service Level

A measure of the quality of service provided to customers, often reflected in the availability or reliability of a service.

Safety Inventory

Extra inventory kept on hand to guard against variability in demand or supply and prevent stockouts.