In: Other

The Deborah number (De) is defined as follows:

De = relaxation time of the material / time scale of the process or
experiment

When De<<1, the material may be described as being
“liquid-like” in its response, and when

De>>1, the material may be described as “solid-like”. At
intermediate values, the material may

be described as being viscoelastic, having a dual liquid (visco-)
and solid (elastic) behavior.

(a) From this definition explain why at room temperature water and
window glass are not

viscoelastic while a compound like silly putty is.

(b) How does the phenomenon of the glass transition temperature
relate to viscoelasticity?

(c) Please give an example of a viscoelastic phenomenon that may
occur during melt processing

of a polymer.

The factorial of a natural number n is denoted by n! and is
defined as follows:
the factorial of 0 is 1, the factorial of 1 is 1, and the
factorial of any other positive integer is the product of all the
integers from 2 to that integer.
Write a VBA function called MyFactorial with one input of data
type Integer which computes and returns the value of the factorial
of the input if it is greater than or equal...

The time required to start a business, defined as the number of
days needed to complete the procedures to legally operate a
business, in 20 developed countries and 20 emerging countries is
included in the accompanying table.
Developed Countries (days)
Emerging Countries (days)
26
1
115
27
8
5
31
5
8
16
5
6
27
16
7
7
6
25
10
2
30
29
11
15
18
18
18
12
29
6
12
22
8
14
25
8
18...

The time required to start a business, defined as the number of
days needed to complete the procedures to legally operate a
business, in 20 developed countries and 20 emerging countries is
included in the accompanying table. Complete parts (a) through
(d) below.
DEVELOPED COUNTRIES (DAYS)
24 34
115 11
7 17
33 20
7 30
4 13
27 10
8 26
6 18
10 22
EMERGING COUNTRIES (DAYS)
2 28
28 15
4 17
5 12
12 5...

What is phase space? And also what is relaxation time? (
Thermodynamics)

show that the relaxation time for a heavily damped rlc circuit
is RC

A researcher would like to determine if relaxation training will
affect the number of headaches for chronic headache sufferers (n =
8). A week before training, each participant recorded the number of
headaches experienced. Participants then receive relaxation
training and following training the number of headaches were
recorded again. The following results were provided:
ΣD = -16
SS = 14
Determine whether the results indicate a significant difference
in chronic headaches after relaxation training? Use an alpha .05,
level of...

A researcher would like to determine if relaxation training will
affect the number of headaches for chronic headache sufferers. For
a week prior to training, each participant records the number of
headaches suffered. Participants then receive relaxation training
and for the week following training the number of headaches is
again measured. The change in number of headaches before and after
training is as follows (minus signs indicate a reduction from time
one to time 2):
Difference scores: -5 -1 ...

A researcher would like to determine if relaxation training will
affect the number of headaches for chronic headache sufferers. For
a week prior to training, each participant records the number of
headaches suffered. Participants then receive relaxation training
and for the week following training the number of headaches is
again measured. (18 points) The data are as follows: MD = 2.25, s =
1.28
a) What is the null hypothesis
for this experiment?
b) What is the alternative
hypothesis for this experiment?...

In the Drude model relaxation time approximation plays a
fundamental role in the theory
of metallic conduction. Consider an electron picked at random at a
given moment. Let t be the time elapsed since its last
collision. Calculate the average of t.

1) A researcher would like to determine if relaxation training
affects the number of headaches for chronic headache sufferers. For
a week prior to training, each participant records the number of
headaches suffered. Participants then receive relaxation training
and for the week following training the number of headaches is
again measured. The data are as follows: before: 6, 5, 3, 3, 6, 2,
4, 4 and after: 4, 1, 3, 1, 2, 1, 3, 2.
a. Do the results indicate...

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