A Mass Sits at Rest on Top of a Table

question 76

Multiple Choice

A mass sits at rest on top of a table.Which two forces are interaction pair forces and thus are equal and opposite?

• A) the force of gravity on the mass due to the earth and the force of gravity on the earth due to the mass
• B) the force of gravity on the mass due to the earth and the contact force on the table due to the mass
• C) the contact force on the mass due to the table and the force of gravity on the earth due to the mass
• D) the force of gravity on the mass due to the earth and the contact force on the mass due to the table

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Definitions:

Ketones

Organic compounds featuring a carbonyl group (C=O) bonded to two other carbon atoms, important in biochemistry and industry.

IR Stretching Frequencies

The specific frequencies at which molecular bonds absorb infrared radiation, causing the bonds to stretch, useful in identifying functional groups in molecules.

C-N Bond

A chemical bond between carbon and nitrogen atoms, common in organic compounds such as amines and amides.

IR Stretch

Infrared stretching refers to the vibration that occurs between atoms within molecules as they absorb infrared radiation, indicative of functional groups in a compound.