•.20 GO In a certain experiment, asmall radioactive source mustmove at selected, extremely slowspeeds. This motion is accom-plished by fastening the source toone end of an aluminum rod andheating the central section of therod in a controlled way. If the effective heated section of the rodin Fig. 18-31 has length d = 2.00 cm, at what constant rate mustthe temperature of the rod be changed if the source is to move ata constant speed of 100 nm/s?Radioactive ElectricheatersourceJClampFigure 18-31 Problem 20.·d

Given: The value of d is 2.00 cm or 0.02 m. The constant speed is 100 nm/s or 100×10-9…

Answered: 20 Go In a certain experiment, a small…

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