Q) A stone weighs 650 N in air and 275 N in water. Compute its * .specific gravity 2.45 3.46 O 0.865 O 1.73

1.4 A new foam-like material called Aerogel is the lightest, most porous solid material ever made. The specific gravity of Aerogel is only 0.00325. A standard pick-up truck holds a volume of about 48.0 ft3. Determine the number of these trucks that would be required to transport 1.00 ton (i.e., 2000 lb) of Aerogel.

Question 3 Calculate the dry rodded unit weight (density), apparent specific gravity, bulk specific gravity oven dry, and bulk specific gravity at SSD for the following two aggregate samples. a) An aggregate sample from a stockpile A has a mass of 35.09 lb. When oven-dried, it has a mass of 33.14 Ib. When brought to a saturated surface dry state it has a mass of 35.18 Ib. When weighed in water, it has a mass of 20.23 lb. A 0.35 ft.³ bucket filled with an oven-dry sample of the aggregate weighs 33.14 lb. b) An aggregate sample from a stockpile A has a mass of 8.93 kg. When oven-dried, it has a mass of 7.4 kg. When brought to a saturated surface dry state it has a mass of 7.87 kg. When weighed in water, it has a mass of 4.35 kg. A 0.009 m.3 bucket filled with an oven- dry sample of the aggregate weighs 13.9 kg.