Describe the evidence for descent with modification (evolution) that Darwin presented in his book “The Origin of Species” in 1859. How well was the book received by scientists and the general public?
In: Biology
Have you ever been in a situation in which you forgot a password and had a difficult time retrieving it? If so, in just a few sentences, write about how it made you feel and what you would do differently next time. If this has never happened to you, write about what you would do to keep track of the many passwords you use.
In: Computer Science
In: Accounting
add 150 mL of h20 to 100 mL 0.250 M HCl. What will be the molarity of the solution?
Can you use the formula M1V1=M2V2 in this problem?
In: Chemistry
A block of mass m1 = 2.00kg and a block of mass m2 = 6.00kg are connected by a mass less string over a pulley in a shape of a solid disk having radius radius R=0.250m and mass M = 10.0kg. The fixed wedgede shaped ramp makes a angle of theta = 30.0 degrees. The coefficient of kinetic friction is 0.360 for both blocks. (a) draw diagram(b) acceleration of the two blocks(c) tension of both sides.
In: Physics
1- Discuss adverse selection and moral hazard? Give examples
2- Define externality and give examples of positive and negative externalities? Give examples
In: Economics
The Walton Toy Company manufactures a line of dolls and a sewing kit. Demand for the company’s products is increasing, and management requests assistance from you in determining an economical sales and production mix for the coming year. The company has provided the following data:
| Product | Demand Next year (units) |
Selling Price per Unit |
Direct Materials |
Direct Labor |
|||
| Debbie | 69,000 | $ | 41.00 | $ | 4.60 | $ | 4.00 |
| Trish | 61,000 | $ | 4.50 | $ | 1.50 | $ | 1.00 |
| Sarah | 54,000 | $ | 30.50 | $ | 9.29 | $ | 7.00 |
| Mike | 46,800 | $ | 15.00 | $ | 3.90 | $ | 5.00 |
| Sewing kit | 344,000 | $ | 9.90 | $ | 5.10 | $ | 0.50 |
The following additional information is available:
The company’s plant has a capacity of 100,400 direct labor-hours per year on a single-shift basis. The company’s present employees and equipment can produce all five products.
The direct labor rate of $10 per hour is expected to remain unchanged during the coming year.
Fixed manufacturing costs total $575,000 per year. Variable overhead costs are $2 per direct labor-hour.
All of the company’s nonmanufacturing costs are fixed.
The company’s finished goods inventory is negligible and can be ignored.
Required:
1. How many direct labor hours are used to manufacture one unit of each of the company’s five products?
2. How much variable overhead cost is incurred to manufacture one unit of each of the company’s five products?
3. What is the contribution margin per direct labor-hour for each of the company’s five products?
4. Assuming that direct labor-hours is the company’s constraining resource, what is the highest total contribution margin that the company can earn if it makes optimal use of its constrained resource?
5. Assuming that the company has made optimal use of its 100,400 direct labor-hours, what is the highest direct labor rate per hour that Walton Toy Company would be willing to pay for additional capacity (that is, for added direct labor time)?
In: Accounting
1. A rectangular loop of wire (0.2 m wide and 0.3 m tall) carrying a current of 0.6 A is in the xy plane, with its right edge along the +y axis. A magnetic field (uniform, B = 1.2 T) exists along a direction that is 74° from the +z axis in the xz plane. What magnitude of torque will act on the loop of wire at that moment ? a) 0.42 Nm b)0.15 Nm c) 0.04 Nm d) 0.09 Nm
2. If the B-field in the previous problem was oriented at 50° from +x in the xz plane determine the magnitude and direction of the torque on a 150 turn loop of the same size as the coil in question#1. a) 4.2 Nm, along +y b) 2.8 Nm, along +y c) 1.1 Nm, along +z d) 0.5 Nm, along +z
3. Will the plane of the coil of wire in question #2 initially swing toward the +z or the -z axis? a) +z b) -z c) Neither +z nor -z
4. For the torque on a current carrying loop to be maximized, the angle between the normal to the plane of the loop and the B-field must be: a) zero. b)45°. c) 90° d) 180°
In: Physics
In Java, write a program that solves the following problem.
An arena can seat 12,000 people for an event. If the arena was full and you were to poll everyone for which day of the year (between 1 and 365, inclusive) they were born, determine which days had the most birthdays and which days had the fewest birthdays.
Write a program that will generate 12,000 random birthdays (integer numbers) between 1 and 365 and count how many people have that same birthday. Output a listing of the days that have the most birthdays and the days that have the fewest birthdays. You do not need to convert a number like 32 to an actual date (February 1st).
Do NOT change your class name from "Main". Your filename should be "Main.java".
Your code will have two classes:
The two classes can be part of the same file. A naive example structure is shown below.
public class Main{
public static void main(String args[]){
Arena a = new Arena();
a.printArena();
}
}
class Arena{
void printArena() {
System.out.println("I am arena");
}
}
Sample Output
The following days have 75 people:
147
The following days have 35 people:
143 312
In: Computer Science
Windows Server 2012 Inside Out Chapter 10 pages 369 to 395
In: Computer Science
For the following reaction, Kc = 255 at 1000 K.
CO (g) + Cl2 (g) ? COCl2 (g)
A reaction mixture initially contains a COconcentration of 0.1490 M and a Cl2concentration of 0.177 M at 1000 K.
What is the equilibrium concentration of CO at 1000 K?
What is the equilibrium concentration of Cl2 at 1000 K?
What is the equilibrium concentration of COCl2 at 1000 K?
In: Chemistry
The solute HCl(A) is diffusing through a 2-mm thick film of water (B) at 283 K. The concentration of HClat point 1 at one boundary of the film is 12 wt% HCl(density r1=1060 kg/m3), and at the other boundary at point 2 it is 6 wt% HCl(r2=1030.3 kg/m3.) Take diffusion coefficient of HClin H2O as 2.5e-9 m2/s, assume steady state and one boundary impermeable to water. Calculate the flux of HCl ( in mol/m^2*s)
In: Other
Write a function that plots a spline curve for arbitrary x values if a solution for Ci is provided in vector form. Name the function spline_group and illustrate results.
Matlab Program
In: Computer Science
The production of yogurts is carried out by adding a specific strain of bacteria to pasteurised milk. The bacteria consumes lactose in the milk to produce lactic acid. Assume the fermentation reaction can be simplified by the following reaction:
Lactose (A) + bacteria cells (C) à more bacteria cells (C) + lactic acid (R)
The data below shows the concentration of lactose from a 2 L mixed flow reactor at 40 oC.
Table 1: Experimental data for lactic acid fermentation
|
ѵ (L/min) |
Clactose ( mg/L) |
|
0.2 |
5 |
|
0.55 |
20 |
|
0.86 |
60 |
|
1.0 |
150 |
a 100 L mixed flow reactor (MFR) operating at optimum condition for an inlet flowrate of 5 L/min. Sketch your reactor scheme (i.e. show whether there is a need to by pass and by how much)
In: Other