TRUE OR FALSE? In pipe flow, if the Reynolds number is very large, then the friction factor depends only on the non dimensional pipe roughness.

Using affinity chromatography, you have attempted to purify an enzyme as a fusion protein that was expressed in E. coli. SDS-PAGE analysis shows that the eluted sample contains the enzyme and it appears to be very pure.

Briefly describe, in general terms, a method you could use to determine the concentration of the enzyme in the eluted sample. Describe the advantages and disadvantages of your approach.

Conclusion on Caterpillar Inc overall.

Effects of vietnam war on people's health and lives

Make a program that calculates the total of a retail sale. The program should ask the user for the following: the retail price of the item being purchased and the sales tax rate. Once the information has been entered, the program should calculate and display the following: the sales tax for the purchase and the total sale.

Vitex, Inc. manufactures a popular consumer product and it has provided the following data excerpts from its standard cost system:

*Applied to Work in Process during the period.

The company's manufacturing overhead cost is applied to production on the basis of direct labor-hours. All of the materials purchased during the period were used in production. Work in process inventories are insignificant and can be ignored.

Required:

1. How many units were produced last period?

2. How many pounds of direct material were purchased and used in production?

3. What was the actual cost per pound of material? (Round your answer to 2 decimal places.)

4. How many actual direct labor-hours were worked during the period?

5. What was the actual rate paid per direct labor-hour? (Round your answer to 2 decimal places.)

6. How much actual variable manufacturing overhead cost was incurred during the period?

A.) What is the pH of a buffer prepared by adding 0.607 mol of the weak acid HA to 0.406 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10−7. ANSWER IS: 6.072

B.) What is the pH after 0.150 mol of HCl is added to the buffer from Part A? Assume no volume change on the addition of the acid. ANSWER IS: 5.776

C.) What is the pH after 0.195 mol of NaOH is added to the buffer from Part A? Assume no volume change on the addition of the base.

I had to request the answer for part B but I don't know how to work the problem out. Please help me!

Write a menu-driven program to read 3 employees' information from a text file called “ EmployeeFile” for this example but that can be edited to add more employees later.
Each employee has a name field, ID fields, and a Salary Record.
The Salary Record has weekly hours, rate per hour, gross salary, Tax, and net salary field.

1.1 Implement the project with queue using pointers

1.2 Write push and pop functions for queue using pointers

C++

EmployeeField.txt example

John_Doe 123456 40 45 4500 200 4300
Billy_Bob 654321 40 200 4000 200 3800
Kate_Johnson 531642 40 300 12000 200 11800

please make sure it works on free compilers online like https://repl.it/languages/cpp to be tested.

Which of the following products of the light dependent reactions is NOT used by the light independent (dark) reactions (Calvin cycle) of photosynthesis?

The drag force on a large ball that weighs 200 g in free flight is given by FD = 2*10 V , where FD is in Newtons and V is in meters per second. If the ball is dropped from rest 300 m above the ground, determine the speed at which it hits the ground. What percentage of the terminal speed is the result?

A survey found that 62​% of callers complain about the service they receive from a call center. State the assumptions and determine the probability of each event described below.

​(a) The next three consecutive callers complain about the service.

​(b) The next two callers​ complain, but not the third.

​(c) Two out of the next three calls produce a complaint.

​(d) None of the next 10 calls produces a complaint.

The probability that the next three callers complain is about?

An ideal vapor-compression refrigeration cycle is modified to include a counterflow heat exchanger, as shown in the figure below. Ammonia leaves the evaporator as saturated vapor at 1 bar and is heated at constant pressure to 5°C before entering the compressor. Following isentropic compression to 18 bar, the refrigerant passes through the condenser, exiting at 40°C, 18 bar. The liquid then passes through the heat exchanger, entering the expansion valve at 18 bar.

If the mass flow rate of refrigerant is 16 kg/min, determine:

(a) the refrigeration capacity, in tons of refrigeration.

(b) the compressor power input, in kW.

(c) the coefficient of performance.

(d) the rate of entropy production in the compressor, in kW/K.

(e) the rate of exergy destruction in the compressor, in kW.

Let T₀ = 20°C

Program description is given below!!

Client and Server Online Game Jumble: In this assignment, you need to use socket programming to implement an online game Jumble. Generate a random work in server and send it to client and ask for input and then client send the guessed word to server and server check whether its in a word.txt file and reply Win or lose.

Note:

• Reading content of a text file to a list and generating random number, and game logic is already implemented in jumble.py
• ONLY need modification in echo-client.py and thread-server.py to implement socket programming.

Test your code and make sure the server can serve multiple players simultaneously. Note the words should be generated independently for each client, so that normally different clients are guessing different words

-----------------------Code--------------------

"""-----------------thread-server.py----------------------
Server side: open a socket on a port, listen for a message from a client,
and send an echo reply; echoes lines until eof when client closes socket;
spawns a thread to handle each client connection; threads share global
memory space with main thread; this is more portable than fork: threads
work on standard Windows systems, but process forks do not;
"""

import time, _thread as thread # or use threading.Thread().start()
from socket import * # get socket constructor and constants
myHost = '' # server machine, '' means local host
myPort = 50007 # listen on a non-reserved port number

sockobj = socket(AF_INET, SOCK_STREAM) # make a TCP socket object
sockobj.bind((myHost, myPort)) # bind it to server port number
sockobj.listen(5) # allow up to 5 pending connects

def now():
return time.ctime(time.time()) # current time on the server

def handleClient(connection): # in spawned thread: reply
time.sleep(5) # simulate a blocking activity
while True: # read, write a client socket
data = connection.recv(1024)
if not data: break
reply = 'Echo=>%s at %s' % (data, now())
connection.send(reply.encode())
connection.close()

def dispatcher(): # listen until process killed
while True: # wait for next connection,
connection, address = sockobj.accept() # pass to thread for service
print('Server connected by', address, end=' ')
print('at', now())
thread.start_new_thread(handleClient, (connection,))

dispatcher()

"""------------------echo-client.py-------------------------
Client side: use sockets to send data to the server, and print server's
reply to each message line; 'localhost' means that the server is running
on the same machine as the client, which lets us test client and server
on one machine; to test over the Internet, run a server on a remote
machine, and set serverHost or argv[1] to machine's domain name or IP addr;
Python sockets are a portable BSD socket interface, with object methods
for the standard socket calls available in the system's C library;
"""

import sys
from socket import * # portable socket interface plus constants
serverHost = 'localhost' # server name, or: 'starship.python.net'
serverPort = 50007 # non-reserved port used by the server

message = [b'Hello network world'] # default text to send to server
# requires bytes: b'' or str,encode()
if len(sys.argv) > 1:   
serverHost = sys.argv[1] # server from cmd line arg 1
if len(sys.argv) > 2: # text from cmd line args 2..n
message = (x.encode() for x in sys.argv[2:])

sockobj = socket(AF_INET, SOCK_STREAM) # make a TCP/IP socket object
sockobj.connect((serverHost, serverPort)) # connect to server machine + port

for line in message:
sockobj.send(line) # send line to server over socket
data = sockobj.recv(1024) # receive line from server: up to 1k
print('Client received:', data) # bytes are quoted, was `x`, repr(x)

sockobj.close() # close socket to send eof to server

--------------------------jumble.py----------------------

import random
F = open('wordlist.txt')
words = F.readlines()
F.close()
while True:
word = words[random.randrange(len(words))]
while len(word) > 5 or len(word) == 0:
word = words[random.randrange(0, len(words))]
word = word.rstrip()
old_word = word
word = list(word)
while word:
print(word.pop(random.randrange(len(word))), end = ' ')
print('\nType your answer')
match_word = input()
new_word = match_word + '\n'
if new_word in words and set(match_word) == set(old_word):
print('You win.')
else:
print('The answer is ' + old_word)

-------------------wordlist.txt---------------------

ab
aba
abaca
abacist
aback
abactinal
abacus
abaddon
abaft
abalienate
abalienation
abalone
abampere
abandon
abandoned
abandonment
abarticulation
abase
abased
abasement
abash
abashed
abashment
abasia
abasic
abate
abatement
abating
abatis
abatjour
abattis
abattoir
abaxial
abba

------------------------------------------------

Thank in advance! Please help me soon. I will UPVOTE!!

Please respond to the following article below:

The Edges of Reason - The New York Times

Case Summary

Microsoft is the world’s largest supplier of computer software. It has dominant market share of PC operating systems with its Windows system. High barriers to entry prevent significant competition in the operating systems market. The primary barrier is that a large number of software programs must be able to interface with any operating system to make it attractive to end users. It would be extremely difficult for any competitor to create a new operating system and create or encourage the creation of completely new software to compete with Windows. However, the development of Internet Browser programs, specifically Netscape, threatened this barrier, by allowing software developers to create software that could run using the browser software as a platform for the program. Therefore, software could be created that could still be used with Microsoft Windows, but would not have to be.

Microsoft recognized this development as a threat to its operating system monopoly. Initially Microsoft attempted to divide the market with Netscape, but Netscape refused. To defend its operating system, it set about to overtake Netscape with its own internet browser, Internet Explorer. To defeat Netscape, Microsoft leveraged its operating system monopoly to gain market share in the internet browser market.   Microsoft forced computer manufacturers to include Internet Explorer and strongly discouraged them from including competing browsers with the bundled software. It also leveraged its operating system power to encourage Online Service Providers (AOL, etc.), Internet Content Providers, and Internet Service Providers to use Internet Explorer and discourage them from making competing browsers available. The actions by Microsoft were effective in taking market share away from Netscape and protecting the Windows Operating System.

Discussion Questions

1. What is the primary barrier to entry in the operating systems market? How does Netscape’s product threaten to remove this barrier?
2. What is Microsoft’s pricing and distribution strategy for Internet Explorer? How does this compare to Netscape? Why would Microsoft pursue this pricing strategy?
3. Is the internet browser software market a separate relevant product market from the operating system market?
4. How does control of the start-up sequence and desktop screen allow Microsoft to leverage internet providers to use Internet Explorer? How effective was this strategy?

5. What are some of the ways in which Microsoft’s actions adversely effect competition and innovation? Does this show evidence of harm to consumers?