1.
Consider the following pairs of goods. For which of the two goods would you expect the demand to be more
price elastic? Why?
a. water or diamonds
b. insulin or nasal decongestant spray
c. food in general or breakfast cereal
d. gasoline over the course
MECHANICS OF MATERIALS: ENGR 2070 SUMMER 2014
ASSIGNMENT #5
Due Date: June 18, 2014
1. A prismatic bar of circular cross section is loaded by tensile force P = 85 kN. The bar has length L
= 3.0 m and diameter d = 30 mm. It is made of an aluminum alloy hav
MECHANICS OF MATERIALS: ENGR 2070 SUMMER 2014
ASSIGNMENT 1
DUE: FRIDAY, MAY 23
1. Who taught yous Statics class? Where (what college/university) and when (what semester/quarter) did you take
Statics?
For problems 2 7, express the signs for each of the int
ASSIGNMENT 2
MECHANICS OF MATERIALS: ENGR 2070 SUMMER 2014
DUE: WEDNESDAY, MAY 28
1. Do textbook problems 1-43/44 (you only have to give the given figure once).
2. Do textbook problem 1-51.
3. Do textbook problems 1-60/61 (you only have to give the given
Slide 1 / 133
Slide 2 / 133
New Jersey Center for Teaching and Learning
Progressive Science Initiative
This material is made freely available at www.njctl.org
and is intended for the non-commercial use of
students and teachers. These materials may not be
MECHANICS OF MATERIALS: ENGR 2070 SUMMER 2014
ASSIGNMENT #9
Due Date: July 21, 2014
1. This is a practice problem that you dont have to turn in, but it will help you work the
next problem (that you do have to turn in).
For the beam with cross-section show
MECHANICS OF MATERIALS: ENGR 2070 SUMMER 2014
ASSIGNMENT 1
DUE: FRIDAY, MAY 23
1. Who taught yous Statics class? Where (what college/university) and when (what semester/quarter) did you take
Statics?
For problems 2 7, express the signs for each of the int
ASSIGNMENT 3
MECHANICS OF MATERIALS: ENGR 2070 SUMMER 2014
DUE: NOT TO BE TURNED IN
YOU DONT HAVE TO TURN THESE PROBLEMS IN, BUT YOU WILL BE RESPONSIBLE FOR
KNOWING HOW TO DO THEM ON EXAM 1.
1. Do textbook problems 1-75/76 (the four nails are driven horiz
3 N . m
S: H r gsuo ) C3 0 5 0.0055 /
FE IT/L, (0.033570 Ugh/mm CM) (7
Evaewa QM? /
5W: 5%? Edwgwm) 1934/. Qwiiyéquo 15*3/7:
=2 AA {DA gzs D. (1) g) S (0.0;) (Lérf').$'0.0/7l8
5 70*!0 A?
T (W)
x)
'D/lsr
vvw-«(awwaw z z 3
Av, rwg'rqomgnw 30.001110 (
MECHANICS OF MATERIALS: ENGR 2070 SUMMER 2014
ASSIGNMENT #6
Due Date: June 27, 2014
1. The two circular rod segments, one of aluminum and the other of copper, are fixed to the rigid
walls such that there is a gap of 0.008 in. between them when T1 = 60F. E
ENGR2070 Spr 06
Sample Test 2 Questions
NOTE: THESE QUESTIONS ARE REPRESENTATIVE OF THE TYPE OF
QUESTIONS YOU MIGHT HAVE ON THE TEST. THIS DOESN'T
NECESSARILY MEAN THAT IF A CONCEPT ISN'T ON THIS SAMPLE TEST,
IT WON'T BE ON THE "REAL" TEST!
A bar consists