An 800-N Billboard Worker Stands on a 4

question 70

Multiple Choice

An 800-N billboard worker stands on a 4.0-m scaffold supported by vertical ropes at each end.If the scaffold weighs 500 N and the worker stands 1.0 m from one end,what is the tension in the rope nearest the worker?

• A)450 N
• B)500 N
• C)800 N
• D)850 N

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Definitions:

Confidence Interval

A statistical range, typically derived from sample data, intended to contain the true value of an unknown population parameter with a specified probability.

Random Sample

A sample drawn in such a way that every member of the population has an equal chance of being selected.

Response Rate

The proportion of individuals who respond to a survey, questionnaire, or research study out of the total number asked to participate.

Generalizing Results

The practice of extending the findings from a research study to a larger population beyond the sample studied.