A 110.0 −mL sample of a solution that is 3.0×10−3 M in AgNO3 is mixed with a 220.0 −mL sample of a solution that is 0.14 M in NaCN. After the solution reaches equilibrium, what concentration of Ag+(aq) remains?

A water stream at a mass flow rate of 0.3 kg/s and temperature of 70°C flows through an aluminum horizontal pipe with an inner diameter of 0.025 m, wall thickness of 3 mm and length of 2 m. The ambient air is at 25 °C and the outlet temperature of water is 65 °C. Assume steady-state conditions are reached and temperature of air is constant.

Given data: Re= 4?̇/µ??,

Nu_D= 1.86 ( Re*Pr / (L/D) ) ^1/3 ; Re < 2300

Nu_D=0.023*Re^4/5Pr^0.3 ; Re >10 000

h_air = 12 W/m²K

k_Al = 237 W/mK

k_water = 0.66 W/mK

Cp,water= 4190 J/kg K

µ_water= 0.4125.10-3 kg/ms

a) Determine the rate limiting step for this system by comparing the thermal resistances.

b) Calculate the change in the total resistance when one of the resistances is halved while the others are held constant? Repeat your calculation for each resistance.

PLEASE ANSWER EACH QUESTION 1 thru 4

Question 1.

In a market with perfectly competitive firms, the market demand curve is and the demand curve facing each individual firm is?

Select one:

a. downward sloping; horizontal

b. upward sloping; horizontal

c. horizontal; upward sloping

d. horizontal; downward sloping

e. horizontal; horizontal

Question 2.

Pure monopoly is defined as?

Select one:

a. an industry consisting of a single seller.

b. a market in which many rival firms compete for sales.

c. a market structure consisting of a single buyer.

d. a market structure that involves many substitute products.

Tom is the monopoly provider of a town's TV cable service, whose current subscription price is $20.00 per month. In order to attract one more subscriber, he has to lower his price to $19.95. What is true of Tom's marginal revenue from that additional subscriber?

Question 3

Select one:

a. Tom's marginal revenue is between $19.95 and $20.00.

b. Tom's marginal revenue is greater than $19.95.

c. Tom's marginal revenue equals $19.95.

d. Tom's marginal revenue is less than $19.95.

Question 4.

Which market structure has the largest number of firms?

Select one:

a. monopolistic competition

b. monopoly

c. oligopoly

d. perfect competition

Write a C++ program to calculate and print the product of odd integers and even integers of the first ‘n’ natural numbers .

3.         Explain why average total cost and average variable cost tend to get closer as output increases. Will the curves ever meet? Why or why not?

Make a paragraph describing the changing roles of women following the American Revolution

The world human population in the twentieth century has been increasing exponentially. Speculate on the logical outcome if this rate of growth continues. How could this growth rate be reduced? What ethical issues could be associated with implementation of any “human management” practices?

1. Describe the prevalence of alcohol consumption, binge drinking, and alcohol-related problems among college students.

Part  2: Approximating the Value of Pi

Mathematical constant pi it most often to find the circumference or the area of a circle. For simplicity, the value that is commonly used for pi is 3.14. However, pi is actually an irrational number, meaning that that it has an infinite, nonrepeating number of decimal digits. The value is

3.1415926535897932384626433832795028841971693993751058209749445923078164062…

In this lab, we will approximate the value of pi using a technique known as Monte Carlo Simulation. This means that we will use random numbers to simulate a “game of chance”. The result of this game will be an approximation for pi.

Setup

The game that we will use for this simulation is “darts”. We will “randomly” throw a number of darts at a specially configured dartboard. The set up for our board is shown below. In the figure, you can see that we have a round dartboard mounted on a square piece of wood. The dartboard has a radius of one unit. The piece of wood is exactly two units square so that the round board fits perfectly inside the square.

But how will this help us to approximate pi? Consider the area of the circular dartboard. It has a radius of one so its area is pi. The area of the square piece of wood is 4 (2 x 2). The ratio of the area of the circle to the area of the square is pi/4. If we throw a whole bunch of darts and let them randomly land on the square piece of wood, some will also land on the dartboard. The number of darts that land on the dartboard, divided by the number that we throw total, will be in the ratio described above (pi/4). Multiply by 4 and we have pi.

Throwing Darts

Now that we have our dartboard setup, we can throw darts. We will assume that we are good enough at throwing darts that we always hit the wood. However, sometimes the darts will hit the dartboard and sometimes they will miss.

In order to simulate throwing the darts, we can generate two random numbers between zero and one. The first will be the “x coordinate” of the dart and the second will be the “y coordinate”. However, we have a problem. The coordinates for the dartboard go from -1 to 1.

How can we turn a random number between 0 to 1 into a random number between -1 and 1? We know that random.random() will return a number between 0 and 1. We may obtain a number between -1 and 1by calculating random.random() *2 -1.

Activity 4: The program has been started for you. You need to fill in the part that will “throw the dart”. Once you know the x,y coordinate, have the turtle move to that location and make a dot. by using the dot() function of turtle. Note that the tail is already up so it will not leave a line.

import turtle

import math

import random

wn = turtle.Screen()

wn.setworldcoordinates(-1,-1,1,1)

fred = turtle.Turtle()

fred.up()

numdarts = 50

for i in range(numdarts):

randx = random.random()

randy = random.random()

x =

y =

wn.exitonclick()

Counting Darts

We already know the total number of darts being thrown. The variable numdarts keeps this for us. What we need to figure out is how many darts land in the circle? Since the circle is centered at (0,0) and it has a radius of 1, the question is really simply a matter of checking to see whether the dart has landed within 1 unit of the center. Luckily, there is a turtle method called distance that will return the distance from the turtle to any other position. It needs the x,y for the other position.

For example, fred.distance(0,0) would return the distance from fred’s current position to position (0,0), the center of the circle.

Now we simply need to use this method in a conditional to ask whether fred is within 1 unit from the center. If so, color the dart red, otherwise, color it blue. Also, if we find that it is in the circle, count it. Create an accumulator variable, call it insideCount, initialize it to zero, and then increment it when necessary. Remember that the increment is a form of the accumulator pattern using reassignment.

The Value of Pi

After the loop has completed and visualization has been drawn, we still need to actually compute pi and print it. Use the relationship insideCount/numdarts *4, why?

Run your program with larger values of numdarts to see if the approximation gets better. If you want to speed things up for large values of numdarts, like 1000, set the tracer to be 100 using wn.tracer(100).

NB: The language is Python.

We are expanding as a clothing sport company with stylish outfits and high quality to Australia . What would be the best to do?What is overall assessment and entry strategic plan for your company? Does your company’s mission statement and objective aligned with this business decision? What will be your corporate- and business-level strategies? Will your company have centralized or decentralized organizational structure? Which of the two types of international strategy will your company follow? Will your company make use of work teams?

This is a strategic management of an entry into new markets and classified as an Ops mgmt problem? Yes

A 0.50-?F and a 1.4-?F capacitor (C1 and C2, respectively) are connected in series to a 18-V battery.

Calculate the potential difference across each capacitor.

Calculate the charge on each capasitor.

Calculate the potential difference across each capacitor assuming the two capacitors are in parallel

Calculate the charge on each capasitor assuming the two capacitors are in parallel.

In a diagnostic x-ray procedure, 5.25*10^10 photons are absorbed by tissue with a mass of 0.590kg . The x-ray wavelength is 2.00*10^-2nm . What is the total energy absorbed by the tissue? What is the equivalent dose in rem?

A student makes a short electromagnet by winding 480 turns of wire around a wooden cylinder of diameter d = 3.5 cm. The coil is connected to a battery producing a current of 4.8 A in the wire. (a) What is the magnitude of the magnetic dipole moment of this device? (b) At what axial distance z >> d will the magnetic field have the magnitude 4.7 µT (approximately one-tenth that of Earth's magnetic field)?

a.) You have performed a series of experiments determining the K_i values for three competitive inhibitors. The following table lists the results:

i) Which inhibitor binds with higher affinity to the free enzyme? Explain.

ii) If the same concentration of inhibitor were used in each experiment, which inhibitor would give the smallest value of K_M? Explain your answer.

b.) You want to load 10ug of protein in 15uL into one of the 10% polyacrylamide gel wells. The protein needs to be in 1X buffer and in a total volume of 0.250ml. You are given a 5.58mg/ml protein solution, a 20X sample buffer, and distilled water. How much of each would you mix together to make the required volume? Show all steps please.

Q1) A(n) 6.1% bond with 10 years left to maturity has a YTM of 9.1%. The bond's price should be $__________. You should assume that the coupon payments occur semiannually.

Q2) A 10-year 4.8% coupon bond was issued 2 years ago. Similarly risky bonds are yielding 6%. Assume semi-annual coupon payments. The bond's price should be $___________.

If you can, please complete both! Thank you so much.