A Rifle of Mass M Is Initially at Rest but Free

question 52

Multiple Choice

A rifle of mass M is initially at rest but free to recoil.It fires a bullet of mass m and velocity v (relative to the ground) .After firing, the velocity of the rifle (relative to the ground) is:

• A)-mv
• B)-Mv/m
• C)-mv/M
• D)-v
• E)mv/M

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Definitions:

Hydrophobic Interactions

The tendency of hydrophobic substances to cluster together due to strong cohesive interactions among surrounding water molecules.

Amino Acids

Organic compounds that combine to form proteins and are used as the building blocks of life.

R Groups

The variable groups of atoms in amino acids that define the chemical characteristics and properties of those amino acids.

Phosphodiester Linkage

The covalent bond between the phosphate group of one nucleotide and the hydroxyl group of another, forming the backbone of DNA and RNA molecules.