NASA Puts a Satellite into Space That Consists of Two $$\text { kinetic energy in terms of } K \text { ? }$$

question 47

Short Answer

NASA puts a satellite into space that consists of two small 32-kg balls connected by a
12-m long light cable, as shown in the figure. The entire system is initially rotating at 4.0
rpm about an axis perpendicular to the cable at the center of mass. Motors in each mass
reel out more cable so that the masses double their separation to 24 m.
(a) What is the final rotational speed (in rpm) of the balls?
(b) If the initial rotational kinetic energy of the system was K, what is the final rotational $$\text { kinetic energy in terms of } K \text { ? }$$

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Definitions:

Weighted-Average Method

An inventory costing method that averages the cost of all similar items available for sale during a period, assigning a consistent cost per unit sold.

Molding Department

A specialized section within a manufacturing facility where the shaping or molding of materials into finished products occurs.

Conversion Costs

Expenses associated with transforming raw materials into complete goods, which encompass both direct labor and the costs of manufacturing overhead.

Weighted-Average Method

An inventory costing method that assigns a cost to inventory on the basis of the average cost of all similar items in the inventory.