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Determine the [OH−] , pH, and pOH of a solution with a [H+] of 6.2×10−13M at 25 °C.
[OH−]= M
pH=
pOH=
Determine the [H+] , pH, and pOH of a solution with an [OH−] of 3.9×10 −13 M at 25 °C.
[H+]= M
pH=
pOH=
Determine the [H+] , [OH−] , and pOH of a solution with a pH of 2.28 at 25 °C.
[H+]= M
[OH−]= M
pOH=
Determine the [H+], [OH−] , and pH of a solution with a pOH of 4.08 at 25 °C.
[H+]= M
[OH−]= M
pH=
The displacement of an object executing simple harmonic oscillations is given by:
x = 0.02 sin 2π ( t + 0.01 ) m
Determine (a) amplitude of the oscillatory motion, (b) time period of oscillation , (c) maximum velocity, (d) maximum acceleration, and (e) initial displacement of the object.
suppose an economy is described by the following equation:
Y = C + I + G + X - M
C = 14 + 0.60Yd
I = 20
G = 10
X = 15
M = 5 +0.1Y
T =20 +0.4 Y
(a) Find out the equilibrium value of income
(b)Calculate net export
(c) what is the value of export multiplier?
(d) if the equilibrium national income at full employment is N$202, what should be the increase in government spending or in exports to attain the full employment level of income?
Extract the GDP, employment rate, investment, education, political stability or other socio-political, institutional and economic factors for all the economies. Run the regression analysis both for the conditional and unconditional convergence for a sample of developed countries and developed countries, each separately and an aggregate analysis for the global economy. The selection for the development level categories can follow regional divisions or international organization membership, etc.... (For e.g. OECD, Western Economies, OPEC, BRICS, etc) . Plot the respective convergence analysis scatter plots depicting the convergence behaviour. (Use the average per capita GDP growth between 1990 and 2020 as a dependent variable and GDP growth rate in 1960 as the independent variable for the unconditional regression analysis. For the conditional convergence, use additional
Give one example of isomerisation of alkane.
With the help of two examples, compare the terms basicity and nucleophilicity.
Discuss four alternatives that increase the use and application of conventional concrete.
Identify at least five phyco-social aspects and analyze the hazards they pose to students, particularly if they are not well supported and discuss the factors.( 20 marks)
What are the advantages of using a third-point loading flexure test over a
center-point loading flexure test? Draw a shear force diagram and a bending
moment diagram for each case to support your answer.
A school is a system with variables that influence the organization's culture and practices. Explain how each aspect may influence teachers' and students' daily routines. (30 marks)
The following topics should be addressed in your responses:
1. The following elements influence teachers' practices:
a. Physical environment b. Student c. Curriculum and resources d. Teacher e. Student Behavior, Learning, and Teaching
2. Learner behaviors in relation to the following variables:
a. Physical environment b. Student c. Curriculum and resources d. Teacher e. Student Behavior, Learning, and Teaching
