Two Life Preservers Have Identical Volumes, but One Is Filled

question 4

Multiple Choice

Two life preservers have identical volumes, but one is filled with styrofoam while the other is filled with sand. When the two life preservers are worn by swimmers so that one swimmer floats with part of the preserver above water, and the other swimmer sinks, the buoyant force is actually greater on the life preserver filled with

• A) sand.
• B) styrofoam.
• C) same

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Definitions:

Average Arrival Rate

A metric used to measure the rate at which entities (customers, goods, etc.) arrive at a facility or system over a specified period.

Average Service Rate

The average number of customers or units that can be processed over a certain time frame in a service system.

Expected to Stay

An estimation of the duration or likelihood that an individual or item remains in a particular state or location.

M/D/1

M/D/1 is a queueing model designation indicating a system with a Poisson arrival process (M), deterministic service times (D), a single server (1), and exponential service times.