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Find the distinct interval of length 1 containing a root or solutin of f(x) = x³ - 3x + 5 using IVT
suppose that GDP is 40 billion below its potential level. It is expected that next period GDP will be 20 billion below potential and that two periods from now it will be back at its potential level. You are told that the multiplier for government spending is 2 and that the effects of the increased government spending are immediate. What policy actions can be taken to put GDP back on target each period?
Are some politicians in Africa viewed as mini god(s)? If so, how can we begin to change the way our leaders lead?
2. The capacitors have values C₁ = 2.0 μF and C₂ = 4.0 μF, C₂ = 5.0 μF C4 = 7.0 μF and the potential difference across the battery is 9.0 V. Assume that the capacitors are connected in series.
a) Find the equivalent capacitance of the circuit.
b) Solve for the potential difference across each capacitors.
3. Given the same problem in #2. Assume that the capacitors are connected in parallel.
a) Find the equivalent capacitance of the circuit.
b) Solve for the charge across each capacitors.
The capacitors have values C₁ = 2.0 μF and C₂ = 4.0 μF, C₂ = 5.0 μF C4 = 7.0 μF and the potential difference across the battery is 9.0 V. Assume that the capacitors are connected in series.
a) Find the equivalent capacitance of the circuit.
b) Solve for the potential difference across each capacitors.
You are thinking about setting up a lemonade
stand. The stand itself costs $200. The ingredients
for each cup of lemonade cost $0.50.
a. What is your fixed cost of doing business?
What is your variable cost per cup?
b. Construct a table showing your total cost,
average total cost, and marginal cost for output
levels varying from 0 to 10 gallons. (Hint:
There are 16 cups in a gallon.) Draw the three
cost curves.
Source: https://diginomica.com/walmart-e-commerce-soars-during-covid-19-crisisonline-profitability-remains-longer-term-challenge
QUESTIONS:
1.1 Using relevant examples from the case study assess the underlying strategic
trends that had impacted Wal - Mart both before and during the Covid-19 crisis. (10)
1.2 In another development in the firm's evolving e-commerce strategy, Walmart has
taken the decision to shutter Jet.com and phase out the brand, three years after
splashing out $3.3 billion to acquire the start-up. Examine Wal- Marts ecommerce strategy
With reference to the above appraise the effectiveness of Wal -Marts ecommerce strategy. (20)
1.3 Given the substantial market share of Amazon in the e- commerce market both in
the USA and abroad, assess with the use of relevant research Wal-marts
effectiveness in competing with Amazon in the e- commerce space. (20)
5. Two shafts 30 in. apart, each carrying a four-step pulley, are to be connected by a cross belt. The driving shaft is to turn 180 rpm while the driven shaft is to turn 50, 150, 250, and 600 rpm. The smallest step of the driver is 10 in. in diameter. Find (a) the diameters of all the steps, (b) angle of contact for each pair of pulleys, and (c) belt length.
4. A pulley 600 mm. in diameter transmits 40 kW at 500 rpm. The arc of contact between the belt and pulley is 144° having a center distance of 1100 mm. Determine: (a) diameter of the driven pulley for open belt drive, (b) speed of the driven pulley, and (c) belt length for open belt connection.
3. Two pulley 12 in diameter and 20 in diameter is connected by a crossed belt with center distance of 45 in. Find the belt length needed to connect them.
#339914 on Dec 2023