Questions
A single phase motor load draws 5.5 A of current at a 0.83 power factor lagging...

  1. A single phase motor load draws 5.5 A of current at a 0.83 power factor lagging from a 50 Hz 240 V source. A capacitor is connected in parallel to the motor to improve the power factor.

(a)If the power factor is improved to unity, find the value of capacitance of the capacitor.

(b)If the power factor improves to 0.96, find the value of capacitance of the capacitor.

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In: Electrical Engineering

Determine the temperature, quality (X), specific volume, and internal energy of water at a state of...

Determine the temperature, quality (X), specific volume, and internal energy of water at a state of P = 0.6 MPa and the enthalpy may be one of the followings; 1. h = 2930 kJ/kg. 2. h = 1700 kJ/kg 3. h = 600 kJ/kg Plot your results on T-v diagram for each case. Use thermodynamics' tables.

In: Mechanical Engineering

PART 1- Identifications. Briefly identify 8 of the following items. Your answers should be no more...

PART 1- Identifications. Briefly identify 8 of the following items. Your answers should be no more than 1 or 2 sentences. (2 points each)

Charles V

Martin Luther

James Cook

Nicolaus Copernicus

Council of Trent

Treaty of Tordesillas

absolutism

Montezuma

Tenochtitlan

treasure fleet

Nzinga of Ndongo

Songhay

Phillis Wheatley

Middle Passage

In: Psychology

Reading a contract and knowing what the contents reveal is very important. In this case, was...

Reading a contract and knowing what the contents reveal is very important. In this case, was there unclarity or ambiguity by the unit owners in describing their duties to the other parties as third-parties? It is feasible to think that Koraev simply did not pay attention to the document when reading? Explain your answer. Critically thinking cases ALLAN v. Nersesova. Need a goos long answers

In: Operations Management

A plate capacitor C has an initial charge Q and plates separation d. A dielectric material...

A plate capacitor C has an initial charge Q and plates separation d. A dielectric material (k=2) is inserted between the plates at the mean while the separation parallel between the plates is doubled (to become 2d). So, in this process one statement below is wrong:

a) U is the same

b) Q is the same

c) V is the same

d) E is the same

In: Physics

A group of researchers hypothesize that broken bones will take longer to heal among smokers versus...

A group of researchers hypothesize that broken bones will take longer to heal among smokers versus nonsmokers. They test this question with a sample of 20 smokers, where the average time to heal was 32 days (SS = 1161), and a sample of 45 nonsmokers, where the average time to heal was 21 days (SS = 1179). Use the critical-value approach for the appropriate statistical test (where α = .05) to determine if there is a significant difference in bone healing time between smokers and nonsmokers. 1. Identify the alternative hypothesis 2. List your degrees of freedom 3. List your estimated standard error 4. List your t test statistic (where: smokers – nonsmokers) 5. List your critical t value(s) 6. Is the difference in healing time between smokers and nonsmokers statistically significant? (Yes/No) 7. Calculate Cohen’s d for the difference in healing time

In: Statistics and Probability

compute the position of the last 5.0 in the list, counting as an offset from the...

compute the position of the last 5.0 in the list, counting as an offset from the end. if 5.0 is the LAST element, the position is 0. if 5.0 does not appear, return a negative number. you can write this using a loop or recursion, in any style, but you should only have one loop or recursive helper

Use a backward recursion.If the number does not appear, return the distance to the END of the list as a NEGATIVE number.

public class MyLinked {
   static class Node {
       public Node (double item, Node next) { this.item = item; this.next = next; }
       public double item;
       public Node next;
   }
   int N;

public int positionOfLastFiveFromEnd () {

You can NOT modify the list or parameters, add fields to the node or list class, or add any methods/use any functions to the node class. Please use a helper and backward recursion.

In: Computer Science

The FBI wants to determine the effectiveness of their 10 most wanted list. To do so,...

The FBI wants to determine the effectiveness of their 10 most wanted list. To do so, they need to find out the fraction of people who appear on the list that are actually caught.

Step 1 of 2: Suppose the sample of 283 suspected criminals is drawn. Of these people, 90 were captured. Using the data, estimate the proportion of people who were caught after being on the 10 most wanted list. Enter your answer as a fraction or a decimal number rounded to three decimal places.

Step 2 of 2: Suppose a sample of 283 suspected criminals is drawn. Of these people 90 were captured. Using the data construct the 85% confidence interval for the population proportion of people who are captuerd after appearing on the 10 most wanted list. round your answers to three decimal places

Low endpoint:   

Upper endpoint:

In: Statistics and Probability

1) Security & E-Business List 5 different types of security issues that may confront a Small...

1) Security & E-Business

List 5 different types of security issues that may confront a Small Business Enterprises (not all are internet based). Discuss some proactive security solutions.

Include an actual example.

Explain the recent legislation change in regards to hacking of SBE’s that meet specific conditions.

2) Budgeting for Labour Commitments

List and discuss some of the employee and payroll issues that may challenge a SBE. Select an actual example for one of these issues and discuss it in reference to the current payroll legislation.
List some of the main sources that a SBE can refer to for assistance. Explain how these sources can assist a SBE.

3) Record Keeping & Compliance

Small business enterprises must comply with the Australian Taxation Legislation. List some of these requirements inclusive of their due dates.
Discuss how compliance with the current legislation may benefit a Small Business Enterprises.

In: Accounting

Try to debug it! ######################################## ##def rev_list_buggy(L): ## """ ## input: L, a list ## Modifies...

Try to debug it!
########################################
##def rev_list_buggy(L):
## """
## input: L, a list
## Modifies L such that its elements are in reverse order
## returns: nothing
## """
## for i in range(len(L)):
## j = len(L) - i
## L[i] = temp
## L[i] = L[j]
## L[j] = L[i]
#
## FIXES: --------------------------
## temp unknown
## list index out of range -> sub 1 to j
## get same list back -> iterate only over half
## --------------------------

def rev_list_buggy(L):
"""
## input: L, a list
## Modifies L such that its elements are in reverse order
## returns: nothing
## """
for i in range(len(L)):
j = len(L) - i
L[i] = temp
L[i] = L[j]
L[j] = L[i]
pdb.set_trace()
L = [1,2,3,4]
rev_list(L)
print(L)

(a) Debug the program by using the Python programming language.

In: Computer Science