Let the speeds of the bail at levels L and U be UL and on, respectively. Then since it takes
ATE/2 to go from fly to the maximum height hm,
arr 1 arr 2
ms vii-(3X s)-
ar. 1 ar. 2
mwt Max :1
Taking the difference of the above two equations, we get
vLATL vU
Quiz 3 Problems:
Show Your Work.
A) An electron moves with a speed of 8.0 106 m/s along the +x-axis. It enters a region where there is
a magnetic field of 2.5 T, directed at an angle of 60 to the +x-axis and lying in the xy-plane.
, mel = 9.11 10-31 kg) C
Physics MOTION STUDY GUIDE
1 At the atomic level, what causes an object to have a positive charge?
A. Atoms can only lose electrons, number of protons can't change)
B. The object has a balance of protons and electrons.
C. All of the above
2 If an object i
Find the charge gm owing through a device if the current is:
cfw_a 211:] = 3A, 9(0) = to
cfw_b fit = cfw_it + SJmA, 2(0) = D
cfw_c :m = 242mm mam, gm) = 2 yo
cfw_:1 in = log-5" sindfA, gm) = :1
Chapter 1, Solution 3
cfw_a qcfw_t = I i[t]|d.t + (1(0) = [3t
ESC: 205 Mechanics of Materials Take-Home Test
Freeman
July 2017
This take-home test is due on Tuesday, July 25 before 9:30 PM. Solutions will be available on
Blackboard as soon as all tests are submitted. The Final Exam is Thursday, July 27. Please show
x
2. Find the directional derivative of the, mction f(x, y,z,) 2 + in the direction of
y 2'
if = (3,4,0) at the point (4, 1, 1).
- l
mum v?(x,'a,z) = (9-7;: . J3. _ x
j far-J cfw_wk-3111
Ems
Vbol) - <L)_. at?
(3)13? 1
UN- VE: '1'H 9:19.05: F I:
D)? R
P4 Stress and Strain
Dr. A.B. Zavatsky
HT08
Lecture 6
Mohrs Circle for Plane Stress
Transformation equations for plane stress.
Procedure for constructing Mohrs circle.
Stresses on an inclined element.
Principal stresses and maximum shear stresses.
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In electrical engineering, we are often interested in communicating or transferring energy from one point to another. To do
this requires an interconnection of electrical devices. Such interconnection is referred to as an electric circuit, and each com
po
18. The function f(.1:,y) = 32(2+y)+y2+4 on the disk D = cfw_32+(y-i-1)2 S 9/4 has critical
points at (0,0). (2,2) and (2, 2). The following graph is of z = f(:1:,y) restricted
to the boundary of D, parameterized by a: = guest, :1; = 1+int, 0 51:5 211'. F
Q/T1-Q/T2+Sgen1=0; W1_Xdest=(To+273)*Sgen1 "Using C instead of K in
Sgen"
Sgen2=Q/(T1+T2)/2); W2_Xdest=(To+273)*Sgen2
temperature in C for Sgen"
"Using avegage
Sgen3=Q/(T1+T2)/2+273); W3_Xdest=(To+273)*Sgen3
temperature in K"
"Using avegage
W4_Xdest=To*S_
Exam
Name_
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the
question.
Sketch the vector field in the plane along with its horizontal and vertical components at a
representative assortment of points on the circle
+
=
Solutions to Exercises & Problems
1E
As the particle moves from point A to point B, the work W done by F is equal
to the
loss of the corresponding potential energy of the system: W = _UAB = UA
UB. Thus
UB = UA W = 40 J 25 J = 15 J.
2E
The elastic potenti
6E
The average velocity is the total displacement divided by the time interval.
The total
displacement r is the sum of 3 displacements, each calculated as the product
of a velocity
and a time interval. The _rst has a magnitude of (60:0 km/h)(40:0
min)=(60
11P
(a) Let the distance between San Antonio and Houston be L, and the time it
takes to travel
to Houston be T. Then on the way to Houston, the average speed is
_v1 =
L
T
= _T
2 _(35 mi/h) + _T
2 _(55 mi/h)
T
= 45 mi/h :
(b) On the way back from Houston,
1E
(a) The free-body diagram for the bureau is shown to the
right. F is the applied force, f is the force of friction, N is the
normal force of the oor, and mg is the force of gravity. Take
the x axis to be horizontal and the y axis to be vertical. Assume
7E
Use Fnet = F1 + F2 = max, where F2 is the second force.
(a) For ax = 10 m/s2 we have F2 = max
F1 = (2:0 kg)(10 m/s2)
20N = 0: Similarly,
(b) F2 = (2:0 kg)(20 m/s2)
20N = 20N for ax = 20 m/s2;
(c) F2 = (2:0 kg)(0 m/s2)
20N =
20N for ax = 0;
(d) F2 = (2
Solution Solved by EES Software. Solutions can be verified by copying-and-pasting the
following lines on a blank EES screen.
Q=750 "W"
T1=30 "C"
T2=15 "C"
To=15 "C"
"Entropy balance S_in - S_out + S_gen= DS_system for the wall for steady
operation gives"
7) The motion of a particle is described in the velocity versus time graph shown in the figure. We can say that its speed
A) increases.
B) decreases.
C) increases and then decreases.
D) decreases and then increases.
Answer: D
30) Two identical objects A a
11) Suppose the force of the air drag on an object is proportional to the speed of the object and in the direction
opposite the object's velocity. If you throw an object upward, the magnitude of its acceleration is greatest
A) right after the object is re
MOTION STUDY GUIDE
16. At what point on a rollercoaster is gravitational potential energy at its maximum? Top of first, highest hill
17. Where on a rollercoaster is kinetic energy increasing and GPE decreasing? anytime going down hill
18. The gravitationa
Fall 2016 Physics 1 135 Print LAST Name:
Rec Sec Letter TEST 1 (4 pages) and First Name:
For questions on this page, write the letter which you believe to be the best
answer in the underlined space provided to the left of the question number.
For problems
MATH 4100 Winter Semester 2008
Professors Address
Professor Carmen Chicone
216 Mathematical Sciences Bldg.
Telephone: Office 2-6331 or Math. Department 2-6221
e-mail: [email protected] or [email protected]
Course Web Page: http:/www.math.missou
Problem 6.] Determine the axial forces in the
members of the truss and indicate whether they are in
tension cfw_T or compression (C).
Strategy: Draw freehbody diagram of joint A. By
writing the equilibrium equations for the joint, you can
determine the ax
MA.912.A.2.4: Determine the domain and range of a relation.
MA.912.A.2.4: Determine the domain and range of a relation.
What is the range of the relation shown in the
graph below?
A. All
B. All
C. All
D.All
y5
x5
values of y
values of x
MA.912.A.2.4: Dete
Do you know the Basic?
1. The cell body of a neuron does all the following except
a. release neurotransmitter into the synaptic clef
b. produce synaptic vesticles containing neurotransmitter that are subsequently transported to
the synaptic knobs.
c. cond