A Block of Ice Slides Freely [No Air Resistance, No

question 79

Multiple Choice

A block of ice slides freely [no air resistance, no friction] down a slippery slope. The block starts from rest at the top of the slope, where it has a vertical height of 4 m above the bottom of the slope and where it has a gravitational energy of 1000 J. The block's total energy a quarter of the way down the slope [at a height of 3 m] is

• A) 250 J.
• B) 500 J.
• C) 750 J.
• D) 1000 J.
• E) greater than 1000 J.

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Definitions:

Lorenz Curve

A widely used graph of the distribution of income, with cumulative percentage of households plotted along the horizontal axis and cumulative percentage of income plotted along the vertical axis.

Lorenz Curve

A graphical representation of the distribution of income or wealth within a society, showing the degree of inequality.

Shaded Area

In graphical analysis, the region enclosed by curves or boundaries, often used to represent quantities such as surplus, deficit, or probability.

Transfer Program

Government policies designed to redistribute income in the society through mechanisms such as social security, grants, and subsidies to support the economically disadvantaged.