5 kg of butane (C4H10), contained in a piston-cylinder device
undergoes a process from P1 = 5 MPa, T1 = 500 K to P2 = 3 MPa and
T2 = 450 K during which the relationship between pressure and
specific volume is PVn = C.
a. Using the data from Generalized Compressibility chart, determine
the amount of work done during the process.
b. If butane is assumed an ideal gas, how would you compare the
work done during the process to the one that you have obtained
above.
QUESTION 9 (PO2, CO2, C6)
For a system that contains butane as described in the above
question (QUESTION 8), by making appropriate assumptions,
investigate and discuss the effect of polytopic exponent on work
boundary and heat transfer, for the system to reach the same:
a. final volume. b. final pressure ( 25 marks )
PLEASE ANSWER QUESTION 9 ACCORDING TO GIVEN MARKS
In: Other
The following data represents the number of children born in individual pregnancies in 1996 and 2006:
| # of children | 1996 frequency | 2006 frequency |
| one child | 3671455 | 3971276 |
| twins | 100750 | 137085 |
| triplets | 5298 | 6118 |
| quadruplets | 560 | 355 |
| quintuplets or more | 81 |
67 |
|
A. Define the random variable x= number of children born in a single pregnancy in 1996 and develop a probablity distribution for the random variable. let x=5 represent quintuplets or more B. Compute expected value and variance for the number of children born in a single pregnancy in 1996 C. define a random variable = number of children born in a single pregnancy in 2006 and develop a probability distribution for the random variable. let y = 5 represent quintuplets or more |
In: Statistics and Probability
You have n numbers and you want to find a number x (out of the n) such that x is larger than the median. You can create an algorithim that takes time O(nlogn): sort the n numbers and then report any number that is larger than the element in position n2 of the sorted array. You can also create an algo in O(n) time, by finding the median in linear time and then doing a linear scan to find a number larger than the median.
Now I need to design a procedure that solves the same problem in time O(k), where k < n. The procedure will be probabilistic, i.e., it will succeed in finding the number larger than the median with probability that depends on k. FInd this dependency.
In: Statistics and Probability
|
The American Housing Survey reported the following data on the number of times that owner-occupied and renter-occupied units had a water supply stoppage lasting 6 or more hours in the past 3 months.
Do not round intermediate calculations. Round your answers to two decimal places. a. Define a random variable x = number of times that owner-occupied units had a water supply stoppage lasting 6 or more hours in the past 3 months and develop a probability distribution for the random variable. (Let x = 4 represent 4 or more times.)
b. Compute the expected value and variance for x.
c. Define a random variable y = number of times that renter-occupied units had a water supply stoppage lasting 6 or more hours in the past 3 months and develop a probability distribution for the random variable. (Let y = 4 represent 4 or more times.)
d. Compute the expected value and variance for y.
e. What observations can you make from a comparison of the number of water supply stoppages reported by owner-occupied units versus renter-occupied units? The number of times of water supply stoppages in owner-occupied houses is Select greater/ less Item 17 than in renter-occupied houses, and the variability in the number of times is Select greater/less Item 18 for the owner-occupied houses |
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In: Statistics and Probability
Two pith balls hang side by side close to each other without touching as shown in the figure below. They are both neutral to begin with.
In: Physics
12. (4) For each of the situations described below: 1) Which process would be primarily affected: RNA Processing, Translation Initiation, Translation Elongation, Translation Termination and 2) Describe the effect/consequence of the change
a) Deletion of a 5’splice site in a pre-mRNA
b) The underlined mutation in the protein-coding region whose reading frame is shown 5’- AUG-CCA-UAU-ACA-3’ 5’- AUG-CCU-UAA-ACA-3’
c) A mutation that removes the Shine-Delgarno sequence
d) A mutation in the tRNA for the amino acid lysine that changes the anticodon sequence from 3′-UUU-5′ to 3′-UAU-5′
In: Biology
1. Compare coenzymes with substrates. Explain how they both collaborate in enzyme catalysis.
2. High levels of ammonia (NH3) are toxic to mammals. One reason is that ammonia bonds with alphaketoglutarate in the citric acid cycle, forming the amino acid glutamate. This removes alphaketoglutarate from the Krebs cycle. Explain what consequences this will have for the cell.
3. Pyruvate + NADH + H+ à lactate + NAD+
Name the oxidizing agent in the above reaction. Explain
4. Trace the steps of a carbon atom from a starch molecule contained in the Donut you just eat until it ends up in a muscle protein.
Please answer ASAP!!
Thank you.
In: Biology
Java
1.Write a method removeEvenLength that takes an ArrayList of Strings as a parameter and that removes all of the strings of even length from the list.
2. Given the following Vehicle interface and client program in the Car class:
public interface Vehicle{
public void move();
}
public class Car implements Vehicle{
public static void main(String args[])
Vehicle v = new Vehicle(); // vehicle declaration
}
The above declaration is valid? True or False?
3. Java permits a class to implement only one interface? True or false
4. The Comparable interface enables the comparison of objects in Java? True or false
In: Computer Science
In: Civil Engineering
In the game of ScrabbleTM, the letters of the English alphabet are inscribed on tiles and a prescribed number of tiles are provided for each letter. Consider an ensemble of ScrabbleTM tiles with a probability distribution defined by the frequency of tiles in the box. Explain how to calculate the information entropy of this ensemble. It is not necessary to actually Compute the entropy, but you can if you wish.
In: Physics