Please explain your answer thoroughly because I want to understand it well and also please include a diagram if possible
Two objects which have mass: m1 = 10kg and m2 = 20kg. Both of them are moving at the velocity of: v1 = 20^i ms and v2 = 10^j ms and then the two objects collide completely inelastically. In what direction do the two objects go after the collision? After the collision, how much kinetic energy was lost?
In: Physics
Is Mr. B’s class has the better students who are good rope jumpers than Mrs. A’s class?
Please solve the problem and show the necessary tests and calculations
|
Mrs. A’s class |
Mr. B’s class |
||||
|
Boy |
5 |
Boy |
1 |
||
|
Boy |
35 |
Boy |
30 |
||
|
Girl |
91 |
Boy |
28 |
||
|
Boy |
62 |
Boy |
10 |
||
|
Girl |
96 |
Girl |
27 |
||
|
Girl |
23 |
Girl |
102 |
||
|
Boy |
16 |
Boy |
47 |
||
|
Boy |
1 |
Boy |
8 |
||
|
Boy |
8 |
Girl |
160 |
||
|
Boy |
11 |
Girl |
23 |
||
|
Girl |
93 |
Boy |
17 |
||
|
Girl |
27 |
Boy |
26 |
||
|
Girl |
88 |
Girl |
68 |
||
|
Boy |
2 |
Boy |
50 |
||
|
Boy |
7 |
Girl |
151 |
||
|
Boy |
7 |
Boy |
60 |
||
|
Boy |
1 |
Boy |
5 |
||
|
Boy |
40 |
Girl |
52 |
||
|
Boy |
7 |
Girl |
4 |
||
|
Boy |
20 |
Girl |
35 |
||
|
Girl |
300 |
Boy |
160 |
||
|
Girl |
90 |
Boy |
1 |
||
|
Boy |
29 |
Boy |
3 |
||
|
Boy |
11 |
Boy |
8 |
||
|
Boy |
113 |
Girl |
48 |
||
|
Boy |
33 |
Boy |
42 |
||
|
Girl |
45 |
Boy |
33 |
||
|
Girl |
80 |
Girl |
20 |
||
|
Girl |
104 |
||||
|
Girl |
53 |
||||
In: Statistics and Probability
A manager at a local discount gym believes that less than 20% of gym members use the gym, at least 5 days a week. She randomly selects 100 gym members and tracks (using the electronic login system at the door) how many days they used the gym over the 2-week period. The following are the results:
| 2 | 3 | 10 | 4 | 2 | 3 | 8 | 4 | 8 | 10 |
| 5 | 0 | 6 | 3 | 9 | 13 | 6 | 3 | 12 | 5 |
| 3 | 3 | 5 | 1 | 5 | 9 | 8 | 5 | 8 | 2 |
| 6 | 4 | 4 | 2 | 12 | 1 | 3 | 3 | 2 | 12 |
| 7 | 3 | 14 | 2 | 8 | 5 | 2 | 6 | 1 | 5 |
| 6 | 9 | 6 | 8 | 10 | 1 | 11 | 3 | 2 | 1 |
| 5 | 4 | 1 | 2 | 3 | 13 | 7 | 4 | 8 | 3 |
| 7 | 4 | 3 | 2 | 10 | 3 | 1 | 7 | 11 | 8 |
| 4 | 7 | 6 | 7 | 8 | 11 | 7 | 6 | 3 | 2 |
| 5 | 0 | 4 | 6 | 5 | 12 | 2 | 10 | 1 | 2 |
Test the manager's claim at the 10% level of significance.
Standard Normal Distribution Table
a. Calculate the test statistic.
z=z=
Round to two decimal places if necessary
Enter 0 if normal approximation to the binomial cannot be used
b. Determine the critical value(s) for the hypothesis test.
Round to two decimal places if necessary
Enter 0 if normal approximation to the binomial cannot be used
c. Conclude whether to reject the null hypothesis or not based on the test statistic.
Reject
Fail to Reject
Cannot Use Normal Approximation to Binomial
Please provide correct answers thanks
In: Statistics and Probability
I have placed my answers in bold I just need to make sure these are right I have some with two answers because I'm just not sure which is correct. I just really want to do well on this last assignment any help is apperciated. Thank you!
Abby is a 20-year-old female college student. For at least the last 3 months, Abby has experienced ongoing anxiety and worry without a specific cause for these feelings. She has been restless and has noticed that her muscles feel tense and that these symptoms are beginning to affect her behavior in a way that is causing her to become distressed and that is preventing her from being able to complete her normal tasks. Abby correctly believed that it was normal to feel a little anxious sometimes; however, as the semester has progressed, she has not begun to feel significantly more comfortable.
On the recommendation of a friend, Abby visited the university’s counseling center and talked to Dr. Smith. Dr. Smith was warm and welcoming and, after discussing the limits of confidentiality with Abby and obtaining informed consent, encouraged Abby to describe her concerns. Dr. Smith listened attentively and asked Abby a few questions. They both agreed on an appointment date and time for the next week. Dr. Smith gave Abby a homework assignment to keep a written log of the negative thoughts or assumptions she has during the week and the circumstances under which those thoughts occurred. Abby was asked to bring the log with her to her next appointment.
Questions
Answer the following questions based on the scenario above. Answers should be short and concise.
Which DSM-5 disorder matches the symptoms Abby is reporting?
According to DSM-5 Abby is suffering from General Anxiety Disorder
Which theoretical model does the homework assigned by Dr. Smith match?
The homework assigned by Dr. Smith matches self- report analysis. or cognitive behavioral therapy
If Dr. Smith recommended medications only, which theoretical model would this match?
Medical Model would match if Dr Smith recommends medication only or motivational interview theory
If Dr. Smith recommended medications in addition to therapy, which theoretical model would this match?
Biopsychosocial model would match if Dr Smith recommends medication in addition to
therapy. or emotional dysregulation model
If Dr. Smith completed a free association exercise with Abby, which theoretical model would this match?
Psychodynamic theory would match if Dr Smith completes a free association exercise
with Abby
or psychoanalytical
If Dr. Smith used unconditional positive regard in the treatment, which theoretical model would this match?
Rogerian Theory would match if Dr Smith uses unconditional positive regard in the
treatment
or
Meta cognitive therapy
If instead of the symptoms listed in the scenario, Abby reported
the following:
She had been in a car accident where she feared for her life. She
had sleep disturbances including nightmares and became
uncomfortable at the thought of driving, to the point that she
avoided driving. She now believes she is a horrible driver,
although her friends assure her this is not true. If these symptoms
have lasted for longer than a month, which DSM-5 disorder label
might match her symptoms?
PTSD
If instead of the symptoms listed in the scenario, Abby reported
the following:
Every day for the past 2 weeks she felt down or sad for most of the
day, had noticed an increase in her appetite, had been unable to
sleep or concentrate, and felt tired. Additionally, this was
interfering with her goals and tasks, and she reported that she had
never felt manic or hypomanic. Which DSM-5 disorder label might
match her symptoms?
Major Depressive Disorder
If instead of the symptoms listed in the scenario, Abby reported
the following:
Every day for at least the past week she felt irritable with
persistently increased energy and talkativeness, was easily
distracted, did not seem to need sleep, and noticed that this
behavior was interfering with her job. She reported that she has
felt these symptoms before in her past and that she has also felt
depressed sometimes. Which DSM-5 disorder label might match her
symptoms?
Bi-polar Disorder
If instead of the symptoms listed in the scenario, Abby reported
the following:
Throughout her life, she has always been suspicious of others. She
reports that she really would like to have good relationships, but
even as a child she knew that others, including family members,
could not be trusted. She feels that she needs to stay on guard to
protect herself. Which DSM-5 disorder label might match her
symptoms?
Schizoid Personality Disorder
If instead of the symptoms listed in the scenario, Abby reported
the following:
She began drinking when she was 18 and now needs to drink more or
higher concentrations of alcohol to continue to function. She
reports that she has lost her part-time job because of her drinking
and is in danger of failing out of college. She was hospitalized
last weekend due to experiencing delirium tremens during
withdrawal, and the doctor explained to her that she could die from
this disorder. Abby recognized that her drinking was interfering
with her life, and she knew that she did not want to die. Which
DSM-5 disorder label might match her symptoms?
Alcohol Withdrawal Syndrome
If instead of the symptoms listed in the scenario, Abby’s former
roommate reported the following:
During a significant portion of the past month, Abby had talked to
herself out loud and told her roommate that she had heard voices
telling her to harm herself. Her roommate reported that Abby had
told her that she occasionally stated that she was Joan of Arc and
that the school mascot was stalking her. Her roommate asked to
change rooms, and now that Abby was living alone, she did not
appear to have bathed in more than a week. This was not typical
behavior for Abby, as she had been known to be meticulous with her
appearance and hygiene. The roommate expressed her concern for Abby
and stated that although she had noticed some of these behaviors
since she first met Abby more than 6 months ago, the behaviors seem
to have increased over the past month. Which DSM-5 disorder label
might match her symptoms?
As per DSM-5 Schizophrenia disorder matches the symptoms of Abby in this scenario
If Abby were 5 years old and, instead of the symptoms listed in the scenario, her symptoms included nightmares, physical complaints, recurrent separation-related fear, and a refusal to leave home, what DSM-5 disorder label might match her symptoms?
Separation anxiety disorder
If Abby were 67 years old, and instead of the symptoms listed in the scenario, had no major medical issues, had never been diagnosed with a neurocognitive disorder, and her symptoms included a substantial decline in the cognitive functioning areas of memory and attention that interfere with her independence, what DSM-5 disorder label might match her symptoms?
Dementia or other dementia-related disorders like Alzheimer's
Dr. Smith discussed the limits of confidentiality and required Abby to sign an informed consent form before treatment. These are examples of items used to protect the patient’s _Privacy and Rights___.
In: Psychology
|
# |
Position (m) |
Time (s) |
|
1 |
40 cm |
0.05 s |
| 2 | 50 cm |
0.05 s |
|
3 |
60 cm |
0.15 s |
|
4 |
80 cm |
0.25 s |
|
5 |
90 cm |
0.30 s |
|
6 |
100 cm |
0.35 s |
|
7 |
110 cm |
0.35 s |
|
8 |
120 cm |
0.40 s |
|
9 |
130 cm |
0.40 s |
|
10 |
140 cm |
0.40 s |
|
11 |
160 cm |
0.50 s |
|
12 |
190 cm |
0.55 s |
Data Analysis
| suppose the distance traveled by the ball is s, and the time taken to fall is t,then its initial velocity is v=0. Using newton's second equation of motion, s=vt+ 1/2 gt2. so g= 2s/t2. by using this equation, we can find that the acceleration is due to gravity. |
|
# |
Δy(m) |
Δt2 |
|
1 |
20 |
|
|
2 |
30 |
|
|
3 |
40 |
|
|
4 |
60 |
|
|
5 |
70 |
|
|
6 |
80 |
|
|
7 |
90 |
|
|
8 |
100 |
|
|
9 |
110 |
|
|
10 |
120 |
|
|
11 |
130 |
|
|
12 |
170 |
Conclusions
| Air friction can cause an experimentally determined gravity acceleration to be less than what it really is. For best precision, the drop needs to be in a vacuum. But your measurement seems to be some sort of error in measurement or calculations, assuming you are not too high above sea level on earth. Gravity also varies even then, dependent on where on earth you measure it. |
|
Wp=m3/6Ge= mge=mge x 3/4=3/6 x 805 Wp=603.75 N |
NOTES:
-moved the photogates to 40 cm and 100 cm
the ball is released from 20 cm
top photogate time 0.05 secs
bottom photogate 0.35 secs
force plate timer 0.60 secs
-Photogates at 50 cm and 120 cm
released from 20 cm
top photogate time 0.05 sec
bottom photogate time 0.40 sec
force plate timer 0.60 sec
60 cm and 130 cm
top photogate time 0.15 sec
bottom photogate time 0.40 sec
force plate time 0.60 sec
80 cm and 140 cm
top photogate time 0.25 sec
bottom photogate time 0.4 sec
force plat etime 0.60 sec
90 cm and 160 cm
top photogate time 0.30 sec
bottom photogate 0.50 sec
force plate time 0.60 sec
110 cm and 190 cm
top photogate time 0.35 sec
bottom photogate time 0.55 sec
force plate time 0.60 sec
In: Physics
8. (20 pts)
a. RSA encryption. Let n = pq = (7)(17) = 119 and e = 5 define a (very modest) RSA public key encryption. Since 25 < 119 < 2525, we can only encode one letter (two digit representation) at a time. Use the function ? = ? mod ? to encode the word MATHY into a series of five numbers that are less than n.
b. To decrypt an RSA encrypted message, we need to find d, the multiplicative inverse of e modulo (p-1)(q-1). Use Euclidian algorithm and two-pass method to determine the Bezout coefficient of e for the RSA in Part a. above. Then write down the decryption function.
A 0 B 1 C 2 D 3 E 4 F 5 G 6 H 7 I 8 J 9 K 10 L 11 M 12 N 13 O 14 P 15 Q 16 R 17 S 18 T 19 U 20 V 21 W 22 X 23 Y 24 Z 25
In: Advanced Math
Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table:
|
Year |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
|
Registrations (000) |
4.00 |
5.00 |
4.00 |
4.00 |
9.00 |
9.00 |
6.00 |
9.00 |
11.00 |
16.00 |
12.00 |
a) Calculate the forecasted registrations for years 2 through 12 using exponential smoothing, with a smoothing constant
(α)
of
0.30
and a starting forecast of
4.00
for year 1 (round your responses to one decimal
place):
|
Year |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
|
Forecast (000) |
4.00 |
B.
The absolute deviation based on the forecast developed for each period using the exponential smoothing method (with a smoothing constant (α) = 0.35 and a starting forecast of F1 = 4.00) adds to (round your response to two decimal places).
C.
Mean absolute deviation based on the forecast developed using the exponential smoothing method (with a smoothing constant (α) = 0.35 and a starting forecast of F1 = 4.00) is
registration (round your response to two decimal places).
In: Operations Management
An airline sells 140 tickets for a flight. Suppose the probability that any given ticket holder actually shows up for the flight is 95%. Find the probability that
a. No one shows up for the flight.
b. Everyone shows up for the flight.
c. Exactly 130 passengers show up.
d. At most 130 passengers show up.
e. At least 130 passengers show up.
f. Less than 130 passengers show up.
g. The number of passengers showing up is between 130 and 140, including 130 and 140.
In: Statistics and Probability
Using the following data set:
100, 50, 20, 70, 200, 30, 130
Apply the selection sort algorithm [Show the first four iterations only]
In: Computer Science
Read the following scenario and in the lawsuit of Stella v McDonalds, list up to three arguments in favor of Stella and up to three arguments in Favor of McDonalds.
“I’m Stella Liebeck. I was in the car with my grandson one day, and he drove up to a McDonalds drive-thru. He asked me if I wanted anything. Of course I did! It’s McDonalds! So, I got a cup of coffee. Hey, I was 79. I needed a little caffeine. They handed him his order (Big Mac, supersized, and my coffee). He pulled over to the side of the line so I could add some milk and sugar. I had the cup balanced on my knees and took the lid off, and hot coffee spilled all over me! I spent 8 days in the hospital having skin cut off my body and grafted onto my knees to replace the burned skin! It was awful! My cotton sweatpants absorbed the coffee, scalding my thighs, buttocks, and groin. I suffered third-degree burns on six percent of my skin and lesser burns over sixteen percent. I lost 20 pounds (nearly 20% of her body weight), I lost so much weight I only weighed 83 pounds and had to undergo two more years of medical treatment.”
In: Operations Management