Questions
a salary adjustment was given to two retail stores recently merged. Ten employees' salaries were recorded...

a salary adjustment was given to two retail stores recently merged. Ten employees' salaries were recorded before and after the adjustment. The average difference was an increase of $2,250 with a standard deviation of $1,100. Test if the increase is significant at the .10 level?

In: Statistics and Probability

It will soon be Thanksgiving and families gather for a feast. Identify 10 foods that can...

It will soon be Thanksgiving and families gather for a feast. Identify 10 foods that can be possible sources of contamination that could occur before, during, or after the meal and why. What practices could minimize the risk of food-borne illness for the event?


In: Nursing

Describe and explain the typical behavior of the Conference Board’s Composite Indexes of Leading, Coincident and...

Describe and explain the typical behavior of the Conference Board’s Composite Indexes of Leading, Coincident and Lagging Indicators: Explain in detail.

1. 6 months before the beginning of an economic recession.

2. 6 months after the beginning of an economic recession?

In: Economics

What is a countervail case? What is an anti-dumping case? Discuss the circumstances under with each...

What is a countervail case? What is an anti-dumping case? Discuss the

circumstances under with each can be initiated by a government. How were

these implemented in the United States before and after the negotiation of the

Canada-US Free Trade Agreement and the NAFTA?

In: Economics

Accounts Receivable has a balance oF $ 33,000, and the Allowance for Bad Debts has a...

Accounts Receivable has a balance oF $ 33,000, and the Allowance for Bad Debts has a credit balance of $3,300. The allowance method is used. What is the net realizable value of Accounts Receivable before and after a $2,200 account receivable is written off?

In: Accounting

In a driven reaction between 1 mole of NaOH and 1 mole of H2C3H2O4 identify the...

In a driven reaction between 1 mole of NaOH and 1 mole of H2C3H2O4 identify the species of interest present in the solution as we add NaOH and state how to handle that solution to determine pH.

a. Before adding NaOH: H2C3H2O4 is the only thing present which will then undergo an equilibrium process and we can use an ice table to determine pH. Since it is a diprotic acid, we might need two ice tables.

b. After adding 0.5 mole of NaOH:

c. After adding 1.0 mole of NaOH:

d. After adding 1.5 mole of NaOH:

e. After adding 2.0 mole of NaOH:

In: Chemistry

Phosphorus acid, H3PO3(aq), is a diprotic oxyacid that is an important compound in industry and agriculture....

Phosphorus acid, H3PO3(aq), is a diprotic oxyacid that is an important compound in industry and agriculture.
pKa1= 1.30
pKa2= 6.70
Calculate the pH for each of the following points in the titration of 50.0 mL of a 2.4 M H3PO3(aq) with 2.4 M KOH(aq).
a. before addition of any KOH
b. after addition of 25.0 mL of KOH
c. after addition of 50.0 mL of KOH
d. after addition of 75.0 mL of KOH.
e. after addition of 100.0 mL of KOH

please show your work as I really do want to understand the process. thank you so much :)

In: Chemistry

Phosphorous acid, H3PO3(aq), is a diprotic oxyacid that is an important compound in industry and agriculture....

Phosphorous acid, H3PO3(aq), is a diprotic oxyacid that is an important compound in industry and agriculture.

Calculate the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq).

pKa1= 1.30

pKa2= 6.70

(a) before addition of any KOH =_____number

(b) after addition of 25.0 mL of KOH = ______number

(c) after addition of 50.0 mL of KOH = ______number

(d) after addition of 75.0 mL of KOH =_______number

(e) after addition of 100.0 mL of KOH=______number

please explain how you got each! thanks so much

In: Chemistry

15 minutes An industrial organization has bought a specialized machine for $120,000 which will save $20,000...

15 minutes An industrial organization has bought a specialized machine for $120,000 which will save $20,000 each year for 10 years. Straight Line (SL) basis depreciation should be taken into consideration with a depreciable life of 10 years. After tax MARR is 10% per year. Effective income tax rate is 40%. After 10 years, the machine will have zero salvage value. a) Draw a table showing Before Tax Cash Flow (BTCF) and After Tax Cash Flow (ATCF). b) Calculate the after tax PW and IRR. (Use interpolation method to find IRR). Is it feasible?

In: Finance

A polymer rod is tested to determine its viscoelastic response. The rod’s cross-section is square with...

A polymer rod is tested to determine its viscoelastic response. The rod’s cross-section is square with the side of 5mm. The rod’s length before loading is 500mm. A tensile force of 500N is applied to the rod and the rod’s length under load was measured as a function of time. Instantly after applying the load, the rod is stretched to 508mm. After 24 and 48 hour under load, the rod’s length was measured as 550mm and 570mm, respectively. The load was then removedand the rod’s length was measured as 525mm after a long time after the removal of the force (consider this as the permanent length). Determine the parameters of the Burger’s model for describing this type of mechanical behavior.

In: Civil Engineering