In 2014, US gold production was 211 metric tons One morning last week, the price

Question

In 2014, US gold production was 211 metric tons One morning last week, the price of gold on the NY stock exchange was $1168 10 pa troy ounce. One troy ounce equals 31.10 g. a Determine the value of the 2014 US gold production as of but week, b If the 2014 US gold produced were formed into a single cube, what would be the length of its edge, in m? A furlong is a unit of length equal to one eighth of a mile, and a fortnight is two weeks Convert 25 miles per hour to furlongs per fortnight. An important parameter to evaluate the behavior or a fluid flowing through a pipe is the Reynolds number, calculated: Calculate the Reynolds number for a acetone flowing with a velocity of 0.6? ft/s through a pipe whose diameter is 2.067 in. The viscosity of acetone is 3.16 times 10^-4 N s/m^2. The trash cans distributed by the city of Mobile are approximately 4 feet tall and have a square cross section with a side of approximately 30 inches. Assuming that the trash can is rectangular, approximate its capacity: a in gallons b in metric tons of water at 4 degree C Liquid cyclohexane is fed to a chemical reactor at a rate of 75 lbmol/min. Find: a. The mass flow rate, in kg/s b. The volumetric flowrate at 20 degree C. in gal/min

Explanation / Answer

1 metric ton = 1000kg.

total gold production = 211 metric ton = 211,000kg = 211,000,000gm

Price of 31.1 gm is $1168.30.

Price of 211,000,000gm gold is = $1168.30 * 211,000,000gm/ 31.3 gm = $7875760383

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density of gold = 19.30 gm/cc

So, volume of 211,000,000gm gold will be = 211,000,000gm/19.30 gm/cc =10932642.49 cc

volume of a cume with side a = a^3

a^3 = 10932642.49

or, a =221.93 cm = 2.219 m

The length of one side of the cube = 2.219 m

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