A closed loop overhead conveyor must be designed to deliver parts from a load station to an unload station. The specified flow rate of parts between the two stations is 320 parts/hr. The conveyor has carriers spaced at a center-to-center distance that is to be determined. Each carrier holds one part. Forward and return loops are each 75 m. Conveyor speed is 0.6 m/s. Minimum feasible times to load and unload parts at the respective stations is 0.16 min for each. Does the system achieve the specified flow rate? If so, what are appropriate values for the number of carriers and the spacing between carriers?

Consider a closed economy with a fixed price:
Consumption function: ? = 1+(3/4)(? − ?)
Investment function: ? = 10
Money demand function: (M/P) = ? − 2?
Tax and government spending: ? = ? = 12
Money supply: ? = 500
Where C is consumption, Y is production, I is investment, ? is real interest rate expressed in percent, ? is tax, ? is government spending, ? is money supply. The price level of this economy is fixed at 10 in the short term and there are many idle production facilities.

(a) Describe the shape of the IS curve (showing the combination of output in product market equilibrium and real interest rates). (Hint: do not derive the IS equation, describe the shape.)
(b) Find the short-term equilibrium income and real interest rate for a closed economy expressed by the above equations.
(c) The economy's policy makers are said to be debating the effectiveness of fiscal and monetary policy to boost the economy. The government considers the income level in (b) to be in a recession and intends to increase fiscal expenditure from 12 to 14 by issuing government bonds. Then, how much the equilibrium income and real interest rate changed from the initial equilibrium income and real interest rate due to the government's expansive fiscal expenditure? Show the results of this economy's expanding fiscal policy as an IS-LM graph. (Put the output on the horizontal axis and the real interest rate on the vertical axis.)
(d) The central bank considers the income level in (b) to be in a recession and wants to increase the money supply from 500 to 520. At this time, answer how much the equilibrium income and real interest rate have changed from the initial equilibrium income and real interest rate due to the central bank's expanding monetary policy. Show the outcome of this economy's expanding monetary policy on an IS-LM graph. (Put the output on the horizontal axis and the real interest rate on the vertical axis.)
(e) If the government sought advice on the effectiveness of fiscal and monetary policy in this economy, please answer which of the two policies would you recommend. And briefly describe the intuitive reason for that.

Consider a closed economy, where the marginal propensity to consume is 0:9. What would be the e§ect on private, public and national saving of a $10 million decrease in both taxes and government spending? Would the equilibrium real interest rate increase, decrease, or stay the same?

In the original eye deprivation experiments Hubel and Wiesel closed one eye of a few days old kitten. A couple of month later they measured neuronal activity in the contralateral V1. What did they find?

Group of answer choices

They found mostly monocular cells.

They found mostly ocular dominance category 2 through 6 type cells.

They found mostly binocular cells.

They found that the receptive field of V1 neurons became large and nonspecific.

They found that V1 neurons no longer responded to visual stimulus.

Dividend Yield

The market price for Macro Corporation closed at $40.54 and $34.50 on December 31, current year, and previous year, respectively. The dividends per share were $0.60 for current year and $0.69 for previous year.

a. Determine the dividend yield for Macro on December 31, current year, and previous year. Round percentages to two decimal places.

b. The dividend yield   from the previous year to the current year. This is a result of a(n)   in the dividend relative to stock price.

Five conditions are required to maintain the Hardy–Weinberg equilibrium in a population.
A. Closed population
B. Large population
C. Random mating
D. No net mutations
E. No natural selection
If any of these conditions is not being met, the allele frequencies in the population will change, leading to microevolution in the population.
Match each of the following scenarios to the Hardy–Weinberg condition that is not being met:

                       An increase in antibiotic resistance among bacteria exposed to antibiotics occurs.

                       Caribou from one herd move to a new area and breed with caribou of a completely different herd.

                       Among eastern bluebirds, more brightly coloured males breed with more brightly coloured females.

                       Due to overhunting, there is little genetic diversity in the current population of bearded vultures, which have all descended from a population of only 36 birds.
  

A closed economy has two factors of production: capital and labor. The production function is known to exhibit constant returns to scale. The capital stock is about 4 times one yearís real GDP. Approximately 8% of GDP is used to replace depreciating capital. Labor income is 70% of real GDP. Real GDP grows at an average rate of 4% per year. Assume the economy is at a steady state. (a) Is the capital per e§ective worker lower or larger than it would have been in the golden rule steady state? [To receive points on this question, you need to show me your calculations] (b) [growth accounting] If the population grows at a rate 1% per year, Önd what portion of output growth is due to: (i) an increase in capital; (ii) an increase in labor; (iii) an increase in total factor productivity.

Consider the axon hillock of a prototypical neuron at rest.

1) detail the open/closed states of the two relevant voltage-gated ion channels while cell is at rest.

The membrane potential reaches threshold.

2) explain what will happen regarding Na+ at this point.

3) state what will happen to the membrane potential at this point.

Right after the poll stations are closed at 17:00, a political candidate receives the
information that out of the 50 people interviewed her approval “count” is 24. As a statistics
lover, she immediately tests the null hypothesis that her population approval rate is less than
or equal 0.50 against its respective alternative, at the 5% level of statistical significance. What
is the conclusion of this test? Suppose in every consecutive 15 minutes, number of people
interviewed increases by 5 and approval count increases by 4. Find the earliest time, HH:MM,
that she can declare her victory based on her tests of hypotheses. Note that a formal
statistical/algebraic solution is expected with proper terminology and notation.

Question 2 Consider a small closed economy. The government wants to reduce the budget deficit by reducing its spending. a. Use the goods market and IS curve to illustrate graphically the impact of the reduction in government spending on output. b. Now use the goods market and money market diagrams and the IS-LM model to illustrate graphically the impact of the reduction in government spending on output c. Why the effect of the reduction in government spending on output is different in part a from that in part b?