Adding a Small Amount of Water to a Substance Increases

question 2

Multiple Choice

Adding a small amount of water to a substance increases its cohesion,whereas adding a lot of water decreases its cohesion.Why?

• A) A small amount of water decreases surface tension,allowing the grains to bond together,whereas too much water will increase surface tension and force the grains away from each other.
• B) A small amount of water increases surface tension and holds the grain together.Too much water between the grains will eliminate surface tension.
• C) Water has a small electrostatic force that disrupts the gravitational attraction of the grains and forces them to move away from each other.
• D) A small amount of water will precipitate cement into the pores of the material,whereas too much water will not allow that cement to form.

Recognize the goals and information needs of managerial accounting.

Know the various types of costs associated with manufacturing (direct materials, direct labor, factory overhead).

Distinguish between prime costs, conversion costs, and period costs.

Understand the classification and reporting of inventory costs in manufacturing businesses.

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Definitions:

Correlation Coefficient

A numerical measure that quantifies the degree of correlation or linear relationship between two variables, ranging from -1 to 1.

Correlation Coefficient

A numerical measure that indicates the extent to which two variables fluctuate together. A value closer to 1 or -1 indicates a strong relationship.

Best Fitting Line

A line drawn through a scatterplot of data points that best expresses the relationship between those points.

Covariance

A measure that indicates the degree to which two variables change together. If the variables tend to show similar behavior, the covariance is positive; if they show opposite behavior, the covariance is negative.