One component of gasoline is isooctane. Assuming that over the course of one year, your car engine burns 250 gallons of pure isooctane density=2.6 kg/gal how many
liters of oxygen does it use?

35. a insulated cylinder of solid gold (k 310 kw/m-k) of radius v2 m and height 5 m is heated at one end until the temperature at each point in the cylinder is given by w(r, y, z) (30 z2)(2-(r2+ y2). determine the rate of heat flow across each horizontal disk given by z 1, z 2, and z 3, identifying which has the greatest rate of heat flow across it.

explanation:

the answer is d. matter from the air combined with the steel wool.