The mass of Mercury is about 
kilograms. The mass of Mars is about double the mass of Mercury. Write the mass of Mars in scientific notation.
Definitions:
Arrival Rate Distribution
Statistical representation describing the frequency and pattern of arrivals at a service system over a specific period.
Service Time Distribution
The statistical distribution of the time taken to serve customers in a queue, affecting waiting times and service efficiency.
Number of Channels
Refers to the distinct paths or routes through which a company distributes its products or services to customers.
Number of Phases
refers to the distinct stages in a project, process, or lifecycle, often marked by key milestones or transitions.
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