Chapter 7:
BIOMES
Where do Plants and Animals Live?
Chapter 7. Outline
1. Pretty frogs
2. Habitats and Niches
3. Environmental gradients
4. Types of terrestrial biomes
A. Tropical rain forests
B. Tropical dry forests
C. Tropical savannas
D. Deserts
E. Med
Class Outline
I. Climate debate and pseudoscience
II. Chapter 6
III. Review for exam
II. Chapter 6
THE FLOW OF MATTER IN THE ENVIRONMENT
Why Does It Matter?
Chapter 6 Outline
Introduction to biogeochemical cycles
C cycle
N cycle
P cycle
S cycle
Matte
Financial Statements, Taxes,
and Cash Flow
Chapter 2
What are the parts of the required financial
statements?
Balance Sheet
Income Statement
Statement of Cash Flows
Statement of Stockholders Equity
2
Who cares about financial statements?
3
Financial Repor
The Flow of Energy in Biological Systems
Chapter 5
1. Smart, Fast Dinosaurs?
Autotrophs and Heterotrophs:
How Living Organisms Use Energy
Autotrophs
Autotrophs self feeders
Measuring Success:
Energy Return on Investment (EROI)
EROI = Energy Obtained (Gro
Class Outline
I.
Review of in-class responses from Tuesdays class
II.
Quick Review of Chapter 2
III. Chapter 3: Systems
ENVR 1101
Environmental Science
I. Class Learning Objectives
Active:
Apply it to everyday life to be more sustainable/protect the
envi
FINA 2201 Financial
Management
Instructor: Anya Mkrtchyan
Why Study Finance?
Every decision that a corporation makes has financial
implications!
Examples:
pricing and product strategies (marketing)
assessing and increasing the financial value of human c
MATH 2341
Solutions: Homework 1, sec 1.3
(1) Find the general solution of the following differential equations.
d
a. y+2a:y=0
dz
Solution:
@_ 1/2
(in: _ 1 + 3:2
Solution:
13.
dy 0083:
dz y2
Solution:
C.
dm 2
.= 1
exdt z+
Solution:
= ~x2+c
2 _2
:
Math 2341 Section 3.3 HOMEWORK SOLUTIONS ON LAPLACE TRANSFORM
USING THE SHIFTING THEOREMS
1 All use the First Shifting Theorem
(A) L[tez] = L[t] with s >s2
1
(S-2)2
(B) L [ r2 e3'
LUZ] with s >s+3
2
(s+3)3
ll
(C) L[e30055t] = L[cosSt] with s >s3
: 53
Math 2341 Section 2.5 HOMEWORK SOLUTIONS ON THE METHOD
OF UNDETERMINED COEFFICIENTS
1 (A) y + 3y + 2y = 4e3"
The characteristic equation is r2 + 3r + 2 = 0 -> (r+ l)(r+2) = 0 > r = -l,2.
Therefore, yo = 01 ex + 02 e
Let yp = Ae'3x (Case 2: a= 3 is notaroo
Math 2341 Section 2.6 SOLUTIONS TO HOMEWORK ON FORCED
MECHANICAL VIBRATIONS
1 If m = l, k = 4, and t) = cos 3t, then the diff. eq. mx + kx =f(t) is x + 4x = cos 3t
with x(0) = 0 and x(0) = 0. So 602: 4 >a)= 2.
Therefore, xc (t) = 61 cos 21 + 62 sin 2! and
Math 2341 Section 2.3 HOMEWORK SOLUTIONS ON CONSTANT COEFFICIENTS
rlx rlx
e
e . .
1 (A) W = m H and det W = rzerXeer - r1 erxez" = (r2 r1)e(r+r2)x 9t 0 smce r1
rle r26 1
and r2 are distinct.
rx FX
6 xe
(B) W:[ rx
m m and det W = e (rxex + e) xe (rem) = e
Math 2341 Section 3.4 HOMEWORK SOLUTIONS ON LAPLACE TRANSFORM
AND THE DIRAC-DELTA FUNCTION
1(A) r)=' 0,0St<1
it , IS t < 2
1, t2 2
t) = 0 + (t1)u(t1) + [1(t1)]u(t-2)
=(tl)u(t-1)+(2-t)u(t-2)
=(t1)u(t1) (t2)u(t2)
1(B) t): 1,OSt<27c
cost,t227r
f(t)=1+[cost1]
Outline
I. Quiz
II. Chapter 4
II. Quiz
Question 1
When the temperature in your apartment is so cold that the
thermostat in your apartment turns on the heat, this is an
example of .
A.
B.
C.
D.
a positive feedback
the coriolis effect
a negative feedback
al
Chapter 1:
ENVIRONMENT AND SOCIETY
A Sustainable Partnership?
Class Learning Goals - Exercise
Write down top 3 goals that you hope to learn
from this class
Pair up with 1 to 2 class members and discuss
your objectives for the next 5 minutes
Log into To
MTH 2341
DIFFERENTIAL EQUATIONS AND LINEAR ALGEBRA
FALL 2016
Prerequisite: Math 1342 or its equivalent.
Instructor: Prasanth George
e-mail: p.george@neu.edu
Office: 532 Nightingale
Office Hours: Mon, Wed 1-2; Tue 9-11
Also by Appointment
Text: Worldwide D
Math 2341 Section 2.4 HOMEWORK SOLUTIONS ON MECHANICAL VIBRATION S
(k
1 lfm = 2 and k= 8,then a): = 2 andtheperiod T= 271/60: 7:.
m
cfw_k
2 If k = 8, then weightw mg > 16 32m > m l/2.So a): = 4 andtheperiod
m
T = 27t/a) = n/2.
3 If m = 3 and k = 12, the