A thin cylindrical plate made of silver is approximately 0.02 inch thick (0.5 mm) and has a radius of 10mm. Assume that all unit cells of the silver plate are arranged so that a is perpendicular to the plate surface. The atomic radius of silver is 0.144 nm and the atomic weight for silver is 107.86 g/mol. Required:
a. What is the crystal structure for silver?
b. Determine the lattice parameter for silver.
c. Determine the total number of unit cells in the plate.
d. State the thickness of the plate in number of unit cells.

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed