1. Youngs modulus (Modulus of elasticity) of a solid is defined as:
force
a. Y = area
b. Y =
changelength
original length
c. Y =
pressure
area
d. Y =
Stress
strain
2. A swimmer is diving 200 m below the surface of a lake ( = 1000 kg/m3). What is the
press
California State University, Monterey Bay
Physics for Biologist (PHYS 150)
Review Sheet, Final Comprehensive Exam:
Use this review sheet as a checklist to make sure youve covered what you need to know
for the second exam.
Text book covers a lot of materia
Open Water Study Guide
1. Neutrally buoyant objects in fresh water will float in saltwater
2. When a balloon is filled at the bottom of a pool and released the air
will expand on the way to the surface.
3. When air is placed in an upside down glass at the
PHYSICS Basic concepts and Equations by Dr. Dhan Khadka
Translational Motion
vectors: add like arrows
Fx = F cos
Fy = F sin
2
F Fx Fy
0 0 t 1 2 t 2
0 t
2 0 2 2
2
= tan1(Fy/Fx)
x
v ave
t
vinstantaneous = slope of tangent line on distance graph.
v
a av
Answerkeyforpracticefinalexam
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
D
C
B
A
C
B
C
C
C
C
A
C
B
B
C
1.1 First Order Differential Equations
1.1.0
Introduction
We begin the study of differential equations with a number of definitions:
Definition: A differential equation is an equation that contains the derivative of one or
more dependent variables with re
Chapter 2
The General, Linear Equation
Let a1 (x) , a2 (x) , . . . , an (x) be continuous functions dened on the interval
a x b, and suppose u (x) is n-times dierentiable there. We form from
u the function Lu, dened as follows:
(Lu) (x) = u(n) (x) + a1 (x