A Box of Mass M Is Pressed Against (But Is

question 20

Multiple Choice

A box of mass m is pressed against (but is not attached to) an ideal spring of force constant k and negligible mass,compressing the spring a distance x.After it is released,the box slides up a frictionless incline as shown in the figure and eventually stops.If we repeat this experiment with a box of mass 2m

• A) the lighter box will go twice as high up the incline as the heavier box.
• B) just as it moves free of the spring, the lighter box will be moving twice as fast as the heavier box.
• C) both boxes will have the same speed just as they move free of the spring.
• D) both boxes will reach the same maximum height on the incline.
• E) just as it moves free of the spring, the heavier box will have twice as much kinetic energy as the lighter box.

Differentiate between liberal and conservative approaches to welfare and poverty alleviation.

Acknowledge the dynamics of poverty and efforts to measure and address it among different demographic groups.

Understand the distinctions in poverty rates among different racial and ethnic groups.

Comprehend the concept and analytical use of Lorenz curves in illustrating income distribution.

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