Advanced Placement (AP), 10.05.2021 23:20 gabriellestaleyga16
Outside the city of Five Points, a small illegal dump is found containing old computer
monitors. The concentration of lead in the soil is 200 ppm in a primary area, a circular region with a radius of 7 meters centered at the dump. A secondary area with an additional width of 7 meters has a concentration of 20 ppm.
Lead can be treated at a cost of $9/m^2 with phytoremediation with sunflowers or $45/m^3 with removal of soil by excavation.
Show your work in each calculation below.
a. What is the range of lead concentrations in mg/kg?
b. What is the area of the primary area? What is the area of the secondary area?
c. Evaluate the cost of remediation through phytoremediation and excavation to 1
meter for the primary and secondary area.
Answers: 1
Advanced Placement (AP), 23.06.2019 16:30
Problem 1: given: 14 coulombs of charge flow in an electrical circuit. the charge is pushed by a voltage difference if 8 volts. a) calculate the amount of work done in volt. coulombs. b.) calculate the work done in joules.
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Advanced Placement (AP), 23.06.2019 16:30
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Advanced Placement (AP), 23.06.2019 20:00
Ill mark brainliest to whoever answers first correctly hurry! a vehicle's is the entire piece of plastic that spans the front end of the passenger cabin. a. instrument panel b. control panel c. dashboard d. frontboard
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Outside the city of Five Points, a small illegal dump is found containing old computer
monitors. T...
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