CRESWELL ACTIVITIES FALL 2009
MORGAN STATE UNIVERSITY
The Department of Education and Urban Studies
1700 E. Coldspring Lane; 317 Jenkins
Baltimore, Maryland 21251
Introduction to Research Methods
10.7 Compute the rate of some reaction that obeys Avrami kinetics, assuming that the constants n and k have values
of 2.0 and 5 104, respectively, for time expressed in seconds.
10.23 Make a copy of the isothermal transformation diagram for a 1.13 wt% C i
1. Calculate the fraction of atom sites that are vacant for copper at its melting
temperature of 1084C (1357 K). Assume energy for vacancy formation of 0.90
2. The purification of hydrogen gas by diffusion through a palladium sheet was
Calculate the fraction of atom sites that are vacant for lead at
its melting temperature of 327C (600 K). Assume an energy
for vacancy formation of 0.55 eV/atom.
0.55 eV / atom
5 eV / atom - K) (600 K)
= 2.41 10-5
Determine the indices for the directions shown in the following cubic
Vector A: We first of all position the origin of the coordinate system at the tail
of the direction vector; then in terms of this new coordinate system
Three basic types of
Sharing of electrons.
Metal atoms bonded to
several other atoms.
Energy minimum energy most stable
Energy balance of attractive
Linear Elastic Properties
Stress-strain behavior: Degree to which a structure deforms or
strain depend on the magnitude of stress
Modulus of Elasticity, E:
(also known as Young's modulus)
E ranges between 45 GPa for Mg to 407GPa for
Determine the carburizing time necessary to achieve a carbon
concentration of 0.45 wt% at a position 2 mm into an ironcarbon
alloy that initially contains 0.20 wt% C. The surface concentration is
to be maintained at 1.30 wt% C, and the treatment is to be
Consider a single crystal of silver oriented such that a tensile stress is applied along a  direction. If slip occurs
on a (111) plane and in a [1 01] direction, and is initiated at an applied tensile stress of 1.1 MPa (160 psi), compute
A cylindrical rod of copper (E = 110 GPa) having a yield strength of
240 MPa is to be subjected to a load of 6660 N. If the length of the
rod is 380 mm, what must be the diameter to allow an elongation of
Homework 1 Questions
1. What does each of the four quantum numbers specify with respect to electrons and electronic
2. Write the electron configurations for the following ions:
P5+, P3, Sn4+, Se2, I, and Ni2+.
3. Determine the percentage ionic cha
Orellana, 2006 Article Answers
Class Size and interaction in Online Classes
5.) A thorough review of the literature is a vital part of any research study for several reasons.
Reviewing the literature allows the researcher to find out what has already been
MSU FCC COHORT 16 EDSR 604.185 FALL 2009-MURRAY
Assignments scheduled and confirmed; Assignment of Teams
APA Review (On-Going)
Introduction to Educational Research
7. What function does the purpose statement in a research study serve?
The purpose of a study has many purposes. The purpose is often used to identify the intent for the study,
the participants in the study, and the site of the study. Within the purpose s
Creswell Activity Chapter 8
1.) Purpose Statement - The purpose of this qualitative study will be to discover how teachers use
technology to visualize math and science concepts in classrooms at high schools.
Central Question How do teacher use
EGN3365-Structure and Properties of Materials TTR 8:30-9:45 Instructor: Dr. S. Seal TA: Mr. Himesh Bhatt Solutions: Home-Work 11
This problem asks that we derive an expression for the dependence of the modulus of elasticity, E, on the parameters A, B,