Two Blocks of Masses M₁ and M₂ Are Connected by a Light

question 14

Multiple Choice

Two blocks of masses m₁ and m₂ are connected by a light cord that passes over a pulley of mass M, as shown. Block m₂ slides on a frictionless horizontal surface. The blocks and pulley are initially at rest. When m₁ is released, the blocks accelerate and the pulley rotates. The total angular momentum of the system of the two blocks and the pulley relative to the axis of rotation of the pulley is Use this exhibit to answer the following question(s) .
-Refer to Exhibit 11-1. The total angular momentum of the system of the two blocks and the pulley relative to the axis of rotation of the pulley is

• A) the same at all times.
• B) proportional to l₁, the length of string from the pulley to m₁.
• C) proportional to l₂, the length of string from the pulley to m₂.
• D) conserved because the Earth doesn't move.
• E) proportional to the speed of the blocks.

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Definitions:

Multiple Regression Model

A Multiple Regression Model is a statistical method used to predict the value of a dependent variable based on the values of two or more independent variables, assessing the extent of their impact.

ANOVA

A statistical method (Analysis of Variance) used to compare the means of three or more samples to see if they come from the same population.

Regression

A statistical method used to examine the relationship between one dependent variable and one or more independent variables.

Intercept Term

In statistics, the intercept term is a constant value that represents where the estimated regression line crosses the y-axis.