In Raising a 5000-N Piano with a Pulley System, It

question 11

Multiple Choice

In raising a 5000-N piano with a pulley system, it is noted that for every 1 m of rope pulled down, the piano rises 0.1 m. Ideally, this means the force needed to lift it is about

• A)50 N.
• B)500 N.
• C)5000 N.
• D)not enough information given

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Definitions:

Experimental Effects

Refers to the impact that the process of conducting an experiment can have on the subjects or outcomes, often leading to changes not directly related to the variables being studied.

Correlation Coefficient

A quantifiable metric demonstrating the degree to which several variables co-vary.

Important Factors

Elements or conditions that are significant or crucial in achieving an outcome or understanding a situation.

Direction of the Relationship

Refers to the way two variables relate to each other in a study, indicating whether an increase or decrease in one variable results in an increase or decrease in the other.