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Mathematics 14 Online
OpenStudy (anonymous):

A probe sent to the surface of Mars uncovers a pure platinum disc inscribed with the message, "We'll be right back" (in Martian, of course!). The disc is 3 inches thick and 04 meters in diameter. The density of platinum is 21,450 kgm3. What is the mass of the platinum disc in pounds (lbm)?

OpenStudy (unklerhaukus):

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