Three Rivers Community College

ENV 2101 Principles of Environmental Engineering I

Instructor: Anthony Benoit

Office: Room 201B (860) 885-2386

Fall ‘02 (MW 11:00-12:15 pm)

abenoit@trcc.commnet.edu

http://environmentalet.org/env2101

Problem

Answer

3.2

(a) 7.85%/year
(b) $142,317

3.3

k=5.38e-4; 1.08e9

3.8

93.6 years; 152.7 years

3.11

3.68 g

3.13

r=0.0386; t*= -11.8 years; population reaches 9 billion in 2038