In a radioactivity experiment, a solid lead brick (withsame measurements as a patio brick, 2.00

in.

× 4.00

in.

× 8.00

in.

, except with a density that is 11.4 times that ofwater) is to be modified to hold a solid cylindrical pieceof plastic. To accomplish this, the machinists are told todrill a cylindrical hole 2.40

cm

in diameter throughthe center of the brick parallel to the longest side of thebrick.