2a)Dr. Hole describes a block of granite that is 1 cubic foot and weighs

175 lbs. Determine the density of the granite in g per cubic centimeters

(remember that 1 foot = 12 inches, 1 inch = 2.54 cm, 1 lb = 454 g)

2b) Extra credit. Imagine that Dr. Hole's block of granite has turned into

a sandy loam soil with 60% sand, 30% silt and 10% clay. How many soil

particles are contained in 1 cubic cm of this soil (bulk density = 1.4

g/cm3). Assume (as mentioned in the article) that 1 g of sand contains 1000

particles, 1 g of silt contains 6 million particles and 1 g of clay

contains 90 billion particles.

If you can get me started I would greatly appreciate it!