calculations for lab?

Question

Diameter of the column: 1.5 cm
Cross sectional area of the column (cm^2): A = π r^2 = π (1.5 cm)^2 = 7.07 cm^2
Height of the column bed: 16.76 cm
Volume of bed:??

Answer 1

Cross sectional area is NOT Pi x Diameter squared ..you need radius squared.

Radius = 0.75cm. Height of bed = 16.76cm
Volume = π r² h
Volume of bed = 3.142 x 0.75 x 0.75 x 16.76
= 29.6 cc.

Answer 2

cross sectional area times the height

Answer 3

volume = the height *Area = 16.76 * 3.14*.75^2 = 29.6 cm^3
cuz d= 1.5 radius = .75