A 075-Kg Block Slides on a Rough Horizontal Table Top

question 5

Multiple Choice

A 0.75-kg block slides on a rough horizontal table top.Just before it hits a horizontal ideal spring its speed is 3.5 m/s.It compresses the spring 5.7 cm before coming to rest.If the spring constant is 1200 N/m, the thermal energy of the block and the table top must have:

• A)not changed
• B)decreased by 1.9 J
• C)decreased by 2.6 J
• D)increased by 1.9 J
• E)increased by 2.6 J

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Definitions:

Residual Income

The amount of income that exceeds the minimum rate of return or hurdle rate, often used in performance measurement.

Operating Assets

Assets that are used for the core operations of a business, necessary for creating goods or services to be sold.

Residual Income

Operating income that remains after deducting all required costs of capital from net operating profits, often used in performance measurement.

ROI

ROI, or Return on Investment, measures the efficiency or profitability of an investment by dividing the net profit from the investment by the initial cost of the investment, typically expressed as a percentage.