An Astronaut at Earth's Surface Has a Mass of 50

question 70

Multiple Choice

An astronaut at Earth's surface has a mass of 50 kg and a weight of 500 N. If she were floating freely inside a space habitat in remote space, she would have

• A)no weight and less mass.
• B)no weight and the same mass.
• C)more weight and no mass.
• D)none of the above

Solve problems involving MUL, ADD, SUB, and other arithmetic instructions.

Understand the operation of compare instructions like CMP, EQU, NEQ, GRT, and LES.

Determine the conditions under which compare instructions return true.

Distinguish between different types of PLC instructions and their outcomes.

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Definitions:

Ethylthio

A functional group in organic chemistry characterized by an ethyl group attached to a sulfur atom, often imparting specific properties to molecules.

Methoxymethyl

A protective group used in organic synthesis, characterized by the presence of a methoxy (-OCH3) and a methyl (-CH3) group.

Enantiomeric Epoxides

Chiral epoxides that are mirror images of each other but cannot be superimposed, important in asymmetric synthesis.

Meso Epoxide

A type of epoxide with a meso compound characteristic, making it optically inactive due to a plane of symmetry despite having chiral centers.