40 J of Work Are Performed in Stretching a Spring

question 5

Multiple Choice

4.0 J of work are performed in stretching a spring with a spring constant of 2500 N/m. How much is the spring stretched?

• A) 3.2 cm
• B) 3.2 m
• C) 0.3 cm
• D) 5.7 m
• E) 5.7 cm

Understand the implications of changing extraction costs on resource extraction.

Examine the effect of global trends on forest cover and the environmental conservation efforts.

Understand the factors making it easier to prevent deforestation than fishery collapse.

Identify examples of fisheries and understand what constitutes a fishery.

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Definitions:

Dependent Variable

The outcome variable in an experiment or study whose changes are dependent on manipulations made to the independent variable(s).

Type II Error

The error that occurs when a statistical test fails to reject a false null hypothesis—essentially, a false negative.

Null Hypothesis

A hypothesis that suggests there is no significant difference or relationship between specified groups or variables, serving as a default position until evidence suggests otherwise.

Sampling Error

The error that occurs due to selecting a sample instead of conducting a census of the entire population, leading to discrepancies between the sample and population parameters.