Problem 3: A capacitor of capacitance C = 2 μF has been charged so that the potential difference between its plates is V0 = 85 V. The capacitor is then connected to a resistor of resistance R = 5.5 kΩ. The switch S is closed, and the capacitor begins to discharge. C = 2 μF V0 = 85 V R = 5.5 kΩ Calculate the time constant τ of the circuit in seconds. Calculate the charge Q0 on the capacitor before the switch is closed, in coulombs. Calculate the current I0 immediately after the switch is closed, in amperes. Calculate the potential difference VC in volts between the capacitor plates at time t = 5.0 ms after the switch is closed. Calculate the time T in s after which the charge on the capacitor has decreased to one fourth its maximum value.
In: Physics
In the circuit of the figure below, the switch S has been open for a long time. It is then suddenly closed. Take ε = 10.0 V,R1 = 40.0 kΩ, R2 = 200 kΩ, and C = 13.0 μF.

(a) Determine the time constant before the switch is
closed.
(b) Determine the time constant after the switch is closed.
(c) Let the switch be closed at t = 0. Determine the
current in the switch as a function of time. (Assume I is
in A and t is in s. Do not enter units in your expression.
Use the following as necessary: t.)
In: Physics
Estoppel:
The doctrine of estoppel may prevent the union or the employer
from relying
on and enforcing the terms of the collective agreement. Where a
party makes a
representation to the other, by way of words or conduct, indicating
that an issue will be
dealt with in a manner different from the provisions of the
agreement, the party who
made the representation will not be able to later insist upon the
collective agreement
being enforced.
Statements made by a party to the agreement could be the basis for
an estoppel. In one
case, a collective agreement provided that layoffs would occur in
reverse order of seniority.
The employer, a hospital, hired two laboratory technicians. The
hiring manager assured
both technicians when they were hired that they would not be laid
off because of funding
cuts or the return of other employees to the department. However,
the hospital laid off the
technicians 14 months after they were hired when other employees
returned to the bargaining
unit. When the employees objected, they were told that the
collective agreement was
clear on the question of seniority on layoffs and there was nothing
that could be done
because they had the least seniority. A grievance was filed, and
the arbitrator held that the
doctrine of estoppel applied.20 Because of the representations made
to the technicians
before they were hired, the employer could not rely on the
collective agreement, and the
layoff of the technicians was nullified.
Estoppel is a legal concept providing
that if a party makes a representation
that an issue will be dealt with in a
manner different from the provisions of
the collective agreement, it will not be
able to later insist upon the collective
agreement being enforced as written.
222 Chapter 9
The union and the employer should be alert to the possibility of
estoppel based on
conduct or past practice. In one case, the collective agreement
provided that certain benefits
would be paid to employees after a three-day waiting period.21
Despite the terms of the
collective agreement, the employer had a long-established practice
of paying employees
benefits during the three-day period. When the employer indicated
it would enforce the
three-day waiting period in the future, the union filed a grievance
relying on estoppel. The
arbitrator upheld the grievance and ordered the employer to
continue to pay the benefits
according to its practice for the balance of the term of the
agreement.
Similarly, a union might be caught by an estoppel argument based on
prior past practice
if it failed to enforce all the terms of the agreement. For
example, a collective agreement
will usually provide for a probationary period. If the employer
made a habit of
extending the period, in breach of the agreement, and the union
took no action, the union
may not be allowed to object to an extension of the period on the
basis of estoppel.22
An estoppel will not be established by a single failure to comply
with or enforce the
collective agreement; however, employers and unions should be aware
of the risk of
repeated failures to enforce a term of the agreement. An employer
who wanted to vary
from the collective agreement to deal with a short-term issue might
consider consulting
with the union and attempting to reach an agreement that would
prevent an estoppel
argument being raised when the employer wished to revert to the
terms of the agreement.
If the agreement provided for a rate of remuneration for employees
who drove their own
cars, and the price of gas increased significantly, an agreement
might allow the employer to
increase the mileage allowance for a time and avoid any possible
estoppel arguments later.
Estoppel does not mean that a party will be prevented from
enforcing the terms of the
agreement indefinitely. An estoppel will cease at the next round of
contract negotiations if
the union or the employer advises the other that it will rely on
the strict terms of the agreement
in the future. The party that has previously relied on the
variation from the collective
agreement will have to negotiate a change to the agreement. If it
fails to do so, it will be
deemed to have agreed to the application of the agreement as
written.
In your own words, describe the concept of "estoppel" and what significance it
has on the change process in a unionized work setting. (100 word target).
In: Operations Management
4. Suppose you are interested in the impact of minimum wages on employment. You collect the following data on two jurisdictions:
|
Jurisdiction |
Year |
Employment (million) |
Minimum wage |
|
1 |
2005 |
2.6 |
15 |
|
1 |
2010 |
2.4 |
15 |
|
1 |
2015 |
2.1 |
16 |
|
2 |
2005 |
1.3 |
16 |
|
2 |
2010 |
1.4 |
16 |
|
2 |
2015 |
1.5 |
16 |
5. Consider the same data on minimum wages and employment from the
previous question. You’re going to use this data to check whether
the two jurisdictions had different trends in employment before the
2010-2015 period. In particular, imagine that the increase in the
minimum wage in jurisdiction 1 happened between 2005 and 2010, not
between 2010 and 2015. Continue to assume that there is no change
in the minimum wage in jurisdiction 2. The “before and after”
approach using the 2005 and 2010 data, with the imagined change in
the minimum wage during this period, would show:
a) none of the listed options.
b) a negative relationship between the change in the minimum wage and the change in employment.
c) no relationship between the change in the minimum wage and the change in employment.
d) a positive relationship between the change in the minimum wage and the change in employment.
In: Economics
QUESTION 1 Every business idea is a business opportunity True/ False
QUESTION 2 A business concept which is feasible is a business opportunity True/ False
QUESTION 3 A business concept resales to a gap in the market which is to be filed by an entrepreneur True /False
QUESTION 4 An innovation which is continuous marginally destroys the previous product True /False
QUESTION 5 An innovation which is dynamically continuous substantially destroys the previous product True /False
QUESTION 6 An innovation which is discontinuous completely destroys the previous product True /False
QUESTION 7 After preparing business plan you have to prepare opportunity assessment plan True/ False
QUESTION 8 After preparing the business plan you have to prepare opportunity assessment plan True/ False
QUESTION 9 Business idea is a concept before ascertaining the feasibility as a business oportunity True/ False
QUESTION 10 Market research is to ascertain the dissatisfied wants of customers True /False
In: Other
The function
D(t) = 43.1224(1.0475)^t. gives the number of master’s degrees, in
thousands, conferred on women in the United States t years after
1960. Find the number of master’s degrees earned by women in 1984,
in 2002, and in 2010. Then estimate the number of master’s degrees
that will be earned by women in 2020.?When will the number of
master’s degrees earned by women in the U.S. reach a million?
In: Math
Assume that the instruction pointer, EIP, initially contains 2010 and the assembly language representation of the instructions in memory starting at address 2010 is
| Instruction Address | Instruction |
| 20 | CMP DL, 0xD2 |
| 21 | JE 72 |
Before the instruction sequence is executed, the flags are CF=0, ZF=0 and SF=0 and the Registers have the values AL=0x0D, BL=0xA9 CL=0x5E andDL=0xCF. What is the value of the instruction pointer after the sequence executes?
In: Computer Science
I have a CSV file with 6 column
| Issue id | action id | Issue category | Issue date | Issue Closed Date | Issue Type |
Please write a code in Python that counts the number of issues in each category and the earliest and latest issue date for each category.
Example of csv
| Issue id | action id | Issue category | Issue date | Issue Closed Date | Issue Type |
| 23 | 1 | Noise Complaint | 7/19/2020 | 7/22/2020 | Client Complaint |
| 24 | 1 | Cleanliness Complaint | 7/19/2020 | 7/23/2020 | Sanitation |
| 25 | 2 | Site Inspection | 7/20/2020 | 7/20/2020 | Patrol |
| 26 | 2 | Noise Complaint | 7/19/2020 | 7/23/2020 | Client Complaint |
In: Computer Science
The population of a small town was 20,000 on January 1st, 2010 and has grown at a rate of about 2% per year since then. Next year, the local high school is closing and this is likely to affect the population of the town as people move away to towns with more schools.
(a) Write down a model of the population of the town for the years 2010 to 2019. Carefully define any variables you use and state any assumptions you make.
(b) Calculate the expected size of the population on January 1st 2020.
(c) The town council wants to work out what will happen to the population once the school closes. They are considering three possible effects:
• Half the families with children of high school age will move out of town immediately. There are 1200 people in families with children of high school age in 2019.
• 10% of the population will move away each year, starting in 2020, because of decreasing opportunities for work in the town resulting from the school closure.
• 100 people who do not like children will move to the town each year once the school has closed and families start to leave. Explain how you would modify the model you wrote down in part (a) to model the population from 2020 onwards. Take account of each of the three effects. Carefully state any assumptions you make.
(d) Use dfield and your model from part (c) to estimate the size the population of the town on January 1st 2025. Include an appropriate printout from dfield to support your answer.
(e) What do you think will happen to the population of the town in the long term? Include an appropriate printout from dfield to support your answer.
In: Statistics and Probability
Under the allowance method for uncollectible accounts
(a) the net realizable value of accounts receivable is greater before an account is written off than after it is written off.
(b) Bad Debts Expense is debited when a specific account is written off as uncollectible.
(c) the net realizable value of accounts receivable in the statement of financial position is the same before and after an account is written off.
(d) Allowance for Doubtful Accounts is closed each year to Income Summary.
In: Accounting