1. Calulate the %(m/v) ad M of a solution made by dissolving .4g of K2SO4 in water and diluting to a volume of 50.00 ML.

2. Show (by use of eq. 5) how the first dilution of the 1 M solution of NaCl results in a .01 M Solution

3. How many mL of a stock solution of a 5.0% solution of NaNo3 are needed to make 1.5 L of a .25 % solution of NaNo3.

Please show work

The time between car arrivals at an inspection station follows an exponential distribution with V (x) = 22 minutes.
1) Calculate the probability that the next car will arrive before the next 10 minutes.
2) Calculate the probability of receiving less than 5 cars during the next hour
3) If more than half an hour has passed without a car being presented, what is the probability that the employee will remain unemployed for at least 10 minutes?
4) If the employee wants to take a break, what is the maximum time that the break must last so that the probability of the next client arriving and not finding the employee in his position is less than or equal to 5%?
5) If we take the times between arrivals for the next 40 minutes and calculate the average, what is the probability that the average time is less than 20 minutes? Under 22 minutes?

A three-phase motor is delta connected to a 415 V, 60 Hz line. If the line current is 25 A and the motor power factor is 0.75, how much power is consumed by the motor (a) Determine the size of the bank of three capacitors to improve the power factor of the motor to 0.95. The capacitors are delta connected. (b) If two of the motors work together, what is the size of capacitors to correct the power factor to 0.95 if delta connected?

Q-3) solve - A to V  of Review Sheet 3 & define all definations.....

A) Draw a short run Phillip’s Curve. What does it represent? Draw a long run Phillip’s Curve. Why does it look different from a short run curve?

B) What is Say's Law? What are the three mechanisms behind Say's Law? Compare the monetarists view with the Keynesian view of Say's Law.

C) What are automatic stabilizers? Give examples of such stabilizers. How do they work and how effective are they?

D) What is meant by fiscal policy? What are the tools of fiscal policy? How does the government use these tools?

E) What is inflation? What are the costs to the economy of inflation? Explain 4 ways the government can slow inflation.

F) What is the Federal Reserve System? What are its goals? What tools are available to the Fed to achieve these goals? How can the Federal Reserve use these tools to stop inflation?

G) How does the banking system create money? Is monetary expansion limitless? Why?

H) List and explain the three functions of money.

I) What is the backing for the US dollar?

J) What is the quantity theory of money? What assumptions do the monetarists make about this theory? What conclusion do these assumptions lead to for the monetarists? What is the Keynesian response to this conclusion?

K) In your opinion, can we have another Great Depression? Why or why not?

L) What is potential GDP? Why do some economists argue for government intervention to help us reach potential GDP and why do others argue against intervention?

M) Define deficit and national debt. What should be done to reduce the national debt?

N) It has been argued that providing unemployment insurance discourages people from looking for a job. Do you agree, why or why not?

O) Different explanations have been given for how nations should decide what to trade. Discuss the explanations of Smith, Ricardo and Hecksher-Olin.

P) Governments have not always encouraged free international trade. What are some reasons why they discourage free trade?

Q) What tools can be used to prevent free trade? Explain what effect these tools have on the economy.

R) What is meant by the gold standard? Why do some people favor our return to the gold standard?

S) What three institutions were set up by the Bretton Woods conference? Explain the goals of each of the institutions.

T) What is meant by the pegged exchange rate? Explain how it differs from the fixed exchange rate. Why was it abandoned by President Nixon?

U) Explain what is meant by the floating exchange rate. How is the value of the dollar determined under this system? What is the impact on the economy of a very strong dollar? Why has the US government in the past tried to reduce the value of the dollar?

V) What should be done about the US trade deficit?

W) Define:

- Absolute advantage

            - Comparative advantage

- Recession

- Long run

- Short run

- Fractional Reserve Banking

- Excess Reserves

- Required Reserves

- Stagflation

- Velocity

- Liquidity

- Assets

- Liabilities

- Fiscal Policy

- Monetary Policy

- Balance of Trade

- Terms of Trade

- Cost-Push Inflation

- Demand-Pull Inflation

The ideal gas law can be stated as P V = nRT where P = pressure in Pascals (Pa) V = volume in cubic meters (m3 ) n = number of moles in moles (mol) R = gas constant = 8.3145m3 Pa / ( K · mol ) T = temperature in Kelvin (K). Using MATLAB or Octave, Write a script that prompts the user for the pressure, the volume, and the temperature; storing each in a variable. The script should then calculate the number of moles, saving it to a variable, and print the result. Sample output: Enter the pressure in Pascals: 101.3 Enter the volume in cubic meters: 3.5 Enter the temperature in Kelvin: 301 A gas with pressure 101.30 Pa, volume 3.50 mˆ3, and temperature 301.00 K has 0.14 moles Enter the pressure in Pascals: 98.1378 Enter the volume in cubic meters: 10 Enter the temperature in Kelvin: 250.2 A gas with pressure 98.14 Pa, volume 10.00 mˆ3, and temperature 250.20 K has 0.47 moles

please show work and reasoning

1) What happens to a light wave with velocity v = ??, when it travels from air into
glass? (a) Its speed remains the same. (b) Its speed increases. (c) Its
wavelength increases. (d) Its wavelength remains the same. (e) Its frequency
remains the same.

2) A Crystal Gyser

The internal audit department of V. Gama College has recently completed a review of
the systems relating to portable equipment. The review focussed on compliance tests
on the controls over the custody of these assets.
The college’s accounts department maintains a centralised asset register. New assets
are recorded on the register as part of the system for the recording and payment of
purchases. The asset register identifies the department responsible for the care and
maintenance of each asset. Disposals are notified to accounts using a form that has
to be signed by the relevant head of department. Departments are required to conduct
an annual physical inspection of their portable assets.
A team of internal auditors led by Mr X Shangase, extracted a sample of entries from
the asset register for each of the college’s departments and physically inspected each
of the assets in the sample. This inspection proved satisfactory, with just one
exception. When the audit team visited the music department it asked to see a number
of items including a clarinet. The music department’s technician became slightly
evasive and stated that the clarinet could not be inspected because it had been signed
out by a member of teaching staff. The audit team asked to see evidence of this and
was concerned to discover that the signature was dated more than two years
previously. The technician said that the signature belonged to a former member of
staff who had left the college six months ago.
The internal audit department submitted a report concerning this incident to the
College Principal, Miss M Shange. Four days later, the Head of the Music Department
Miss P Rangasamy telephoned the internal audit department to report that the clarinet
had been in the department at the time of the audit, but that the technician had not
been aware of its location. The former staff member who had signed the clarinet out
had returned the instrument soon afterwards and had simply forgotten to record the
instrument’s safe return. The Head of the Music Department insisted that a member
of the audit staff inspect the clarinet in order to confirm its presence, which was done.The Head of Internal Audit was not satisfied by the response. He was concerned that
the Head of the Music Department could have been covering up a theft committed by
a former colleague by requesting the return of the clarinet and by fabricating an
explanation that the instrument had been mislaid as at the time of the audit. The
College Principal acknowledged these concerns, but instructed the Head of Internal
Audit to take no further action.

DETAILED ANSWERS.
(a) Discuss the implications for the internal audit department of the events up to and
including the discovery that the clarinet had been signed out by a former member of
staff.

DETAILED ANSWER:
(b) Discuss the implications of the responses by the Head of the Music Department
and the College Principal
(i) for the governance at the college.
(ii) for the actions the Head of Internal Audit will take in response to these.

A shunt motor has a supply voltage of 200 V and armature resistance of 3.6 Ω. At certain torque the motor run at speed = 1200 R.P.M and take a current of 10 Amp from the supply and its field current is 0.5 Amp. Find starting torque, no-load speed, and the load torque when the current supplied by the supply is 5 Amp.

Consider a pMOS transistor with VTH = –0.5 V, Kp = 40μA/V2 , length, L = 0.25μm, and width, W = 1.25μm.

(a) Given that VSG = 1V, determine the range of values of VSD for which the device is in the saturation region.

(b) Given that VSG = 1V, determine the range of values of VSD for which the device is in the triode/linar region.

(c) Plot ISD vs VSG for operation in the saturation region. Ignore channel length modulation i.e. assume that λ = 0.

For the following parts, you will try to “bias” the transistor to meet your needs i.e. choose VSG and VSD. Assume length, L = 0.25μm, and width, W = 1.25μm.

(d) What VSG should you use such that the transistor is in saturation and ISD = 252μA? Assume that λ = 0.

(e) For VSG should you use that the transistor is in triode region and its ON resistance is ron = 3kΩ?

1. What is the optimal D/V ratio that minimizes the WACC with and without financial distress costs?
2. Explain why the cost of debt and the cost of equity increase as debt is added to the capital structure?
3. Explain why our method of increasing the cost of debt is unrealistic and what could you do instead?