Answer:
The average power is calculated as 735.0 W
Solution:
As per the question:
Total mass, M = 1200 kg
Counter mass of the elevator, m = 950
Distance traveled by the elevator, d = 54 m
Time taken, t = 3 min = 180 s
Now,
To calculate the average power:
First, we find the force needed for lifting the weight:
Force, F = (M - m)g = ![(1200 - 950)\times 9.8 = 2450 N](https://tex.z-dn.net/?f=%281200%20-%20950%29%5Ctimes%209.8%20%3D%202450%20N)
Now, the work done by this force:
W = Fd = ![2450\times 54 = 132300\ J = 132.3\ kJ](https://tex.z-dn.net/?f=2450%5Ctimes%2054%20%3D%20132300%5C%20J%20%3D%20132.3%5C%20kJ)
Average power is given as:
![P_{avg} = \frac{W}{t} = \frac{132300}{180} = 735.0\ W](https://tex.z-dn.net/?f=P_%7Bavg%7D%20%3D%20%5Cfrac%7BW%7D%7Bt%7D%20%3D%20%5Cfrac%7B132300%7D%7B180%7D%20%3D%20735.0%5C%20W)
Rational expectations theory suggests that the speed of adjustment Purcell correction would be very quick.
<h3>What Is Rational Expectations Theory?</h3>
The rational expectations theory is a widely used concept and modeling technique in macroeconomics. Individuals make decisions based on three primary factors, according to the theory: their human rationality, the information available to them, and their past experiences.
The rational expectations hypothesis was originally suggested by John (Jack) Muth 1 (1961) to explain how the outcome of a given economic phenomena depends to a certain degree on what agents expect to happen.
- People who have rational expectations always learn from their mistakes.
- Forecasts are unbiased, and people make decisions based on all available information and economic theories.
- People understand how the economy works and how government policies affect macroeconomic variables like the price level, unemployment rate, and aggregate output.
To learn more about Rational expectations theory from the given link
brainly.com/question/16479910
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Assuming you mean temperature
Answer: The third law of thermodynamics
I tried to look it up but it was saying that the super climate later broke apart in the sediments have been moving into their current positions ever since
Answer:
True
Explanation:
When a star has reached the main sequence stage, hydrogen is converted into helium by nuclear fusion, . Also, the gravity and pressure are balanced because the star does not radiate more heat than it generates. A star usually spends most of its lifetime at this stage.
The Zero Age Main Sequence is the period during the main sequence when a star stops contracting, and begin to fuse hydrogen in its core.