The Earth Has a Mass of Approximately 80 Times That

question 63

Multiple Choice

The Earth has a mass of approximately 80 times that of the Moon.The distance between their centers is on average 384000 km.How far from the center of the Earth is the center of mass of the Earth-Moon system?

• A) Not enough information is given
• B) 4800 km
• C) 4860 km
• D) 4740 km

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Definitions:

Immediate Output

An output action in a control system that occurs directly in response to an input condition without delay.

Program Scan

A program scan is the sequential process by which a programmable logic controller (PLC) or controller cycles through its instructions to control connected devices.

Forcing Functions

In the context of programming and engineering, forcing functions are elements designed to ensure certain actions occur or prevent undesired states, often used in automated systems to override standard operations for testing or emergency purposes.

Field Device

A hardware component located physically in the field or on the plant floor, responsible for collecting data or controlling physical processes.