A 40-Kg Uniform Ladder That Is 5

question 64

Multiple Choice

A 40-kg uniform ladder that is 5.0 m long is placed against a smooth wall at a height of h = 4.0 m, as shown in the figure. The base of the ladder rests on a rough horizontal surface whose coefficient of static friction with the ladder is 0.40. An 80-kg bucket is suspended from the top rung of the ladder, just at the wall. What is the magnitude of the force that the ladder exerts on the wall?

• A)740 N
• B)1300 N
• C)980 N
• D)900 N
• E)1100 N

Understand the application of behavior analysis techniques to encourage safe behavior and reduce risks.

Comprehend the unique characteristics and examples of conditioned taste aversions.

Recognize different conditioning and learning procedures and their applications, including classical and operant conditioning.

Identify practices of applied behavior analysis such as shaping and self-reinforcement.

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Definitions:

Regulation

A rule or directive made and maintained by an authority to regulate behavior, usually in the context of legal, professional, or institutional settings.

Specific Gravity

The weight or degree of concentration of a substance compared with that of an equal volume of another, such as distilled water, taken as a standard.

Amber

A fossilized tree resin, often used as a gemstone, which is known for its warm, honey-like color and the potential to contain prehistoric inclusions.