the Figure Shows the Free-Body Diagram for the Block

question 5

Multiple Choice

. The figure shows the free-body diagram for the block. represents the normal force on the block; and represents the force of kinetic friction.
-If the coefficient of kinetic friction, , between the block and the surface is 0.30 and the magnitude of the frictional force is 80.0 N, what is the weight of the block?

• A)1.6 N
• B)4.0 N
• C)160 N
• D)270 N
• E)410 N

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Definitions:

Barbiturates

A class of drugs historically used for their sedative, hypnotic, and anxiolytic properties, though now less common due to the risk of dependence and overdose.

Amphetamines

A class of psychoactive drugs that stimulate the central nervous system, increasing energy and alertness.

Barbiturates

A class of drugs that act as central nervous system depressants, often used for their sedative and anxiolytic effects.

Hallucinogens

A category of drugs that can alter and distort perceptions of time and space, alter mood, produce feelings of unreality, and cause hallucinations; also called psychedelics.