Hooke's Law: Block a (0

question 18

Multiple Choice

Hooke's law: Block A (0.40 kg) and block B (0.30 kg) are on a frictionless table (see figure) . Spring 1 connects block A to a frictionless peg at 0 and spring 2 connects block A and block B. When the blocks are in uniform circular motion about 0, the springs have lengths of 0.60 m and 0.40 m, as shown. The springs are ideal and massless, and the linear speed of block B is 2.0 m/s. If the distance that spring 2 stretches is 0.060 m, the spring constant of spring 2 is closest to

• A) 18 N/m.
• B) 20 N/m.
• C) 22 N/m.
• D) 24 N/m.
• E) 26 N/m.

Calculate and interpret confidence intervals for means and proportions.

Understand the assumptions underlying different statistical tests and when they are met.

Recognize and apply the appropriate statistical test for different types of data and research questions.

Determine sample size and its influence on statistical inference.

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Definitions:

Linear Association

A relationship between two variables that can be represented by a straight line on a graph.

Negative Association

A relationship between two variables in which one variable increases as the other decreases.

Moderately Strong Association

Indicates a significant but not perfect relationship between two variables, often quantified by correlation coefficients.

Positive Association

A relationship between two variables in which they increase or decrease together.