Which of These Stars (Each of Which Is Listed with Its

question 219

Multiple Choice

Which of these stars (each of which is listed with its apparent magnitude) looks brightest when viewed from Earth?

• A) tau Ceti; m = +3.49
• B) alpha Centauri B; m = +1.34
• C) Barnard's star; m = +9.53
• D) 61 Cygni A; m = +5.21

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Definitions:

PLC Chassis

A PLC chassis provides the structural support to accommodate various PLC modules, including processors, input/output modules, and communication modules, facilitating their interconnection.

Terminal

An endpoint or interface for entering data into or receiving data from a computer system.

Bit Status

The current state (ON or OFF) of a single binary digit in computer memory or communications, representing the smallest unit of data.

Input Device

A hardware device that allows users to feed data or commands into a computer or electronic system, such as a keyboard, mouse, or scanner.