Part B
Indicate the number of unpaired electrons for following: [noble gas]ns2np5
Express your answer as an integer.
Part C
Identify the group of elements that corresponds to the following generalized electron configuration: [noble gas]ns2(n?1)d2
Incorrect; Try Again; 5 attempts remaining
Part D
Indicate the number of unpaired electrons for following: [noble gas]ns2(n?1)d2
Express your answer as an integer.
Part E
Identify the group of elements that corresponds to the following generalized electron configuration: [noble gas]ns2(n?1)d10np1
Incorrect; Try Again; 5 attempts remaining
Part F
Indicate the number of unpaired electrons for following: [noble gas]ns2(n?1)d10np1
Express your answer as an integer.
Part G
Identify the elements that correspond to the following generalized electron configuration: [noble gas]ns2(n?2)f6
Express your answer as the element symbol. If there is more than one answer, separate them by a comma.
Part H
Indicate the number of unpaired electrons for following: [noble gas]ns2(n?2)f6
Express your answer as an integer
In: Chemistry
1 of 20
Which of the following is the most accurate statement concerning charge?
| a | Charge is one of the seven fundamental dimensions found in nature. |
| b | Charge is a derived dimension (current • time), with SI units of Coulombs. |
| c | Charge is a derived dimension (current • time), with SI units of amperes. |
| d | Charge is a fundamental quantity found in all elementary particles such as protons, electrons, and neutrons. |
| e | The electrical force between two charges is directly proportional to the distance between the two charges. |
Question
2 of 20
Which of the following is the most accurate statement concerning electrical force?
| a | Electrical force is a derived dimension, with SI units of Newton/meter. |
| b | In most cases, the electrical force between two particles is roughly equivalent to the gravitational force between the particles, but opposite in direction. |
| c | Electrical force is one of the seven fundamental dimensions, with SI units of Newton. |
| d | Electrical force obeys the inverse square law. |
| e | Like the gravitational force, the electrical force is always attractive, never repulsive. |
Question
3 of 20
Which of the following is the most accurate statement concerning the first law of thermodynamics?
| a | The first law of thermodynamics describes the relationship between systems in thermal equilibrium. |
| b | The first law of thermodynamics describes the relationship between heat, work, and internal energy in a thermodynamic system. |
| c | The first law of thermodynamics describes the conservation of energy in an open thermodynamic system. |
| d | The first law of thermodynamics describes the conservation of energy in a closed thermodynamic system. |
| e | More than one of given statements are accurate. |
Question
4 of 20
What is the most accurate statement concerning the second law of thermodynamics?
| a | The Carnot cycle involves an isothermal expansion followed by an isobaric compression. The efficiency of this partial cycle is normally about 96%. |
| b | The second law of thermodynamics requires heat to flow spontaneously from a cooler object to a warmer object. This is the basis for a refrigerator. |
| c | A closed thermodynamic system absorbs heat at a high temperature and then converts the heat absorbed into useful work at a lower temperature. |
| d | An isothermal process requires the temperature and pressure in a closed thermodynamic system to remain constant. |
| e | No cyclic thermodynamic process can convert heat completely into mechanical work. |
Question
5 of 20
What is the most accurate statement concerning the relationship between entropy and the second law of thermodynamics?
| a | Entropy provides a quantitative measure of the disorder of a system. |
| b | Entropy is equal to the ratio of the heat added to a system and the absolute temperature of the system. |
| c | Like energy, entropy is required to be conserved in both reversible and irreversible thermodynamic processes. |
| d | More than one of these statements (a, b or c) are accurate. |
| e | None of the statements (a, b or c) is accurate. |
Question
6 of 20
If you run a Carnot heat engine in reverse, which of the following statements must be true?
| a | Heat enters the gas at the cold reservoir and goes out of the gas at the hot reservoir. |
| b | The amount of heat transferred at the hot reservoir is equal to the amount of heat transferred at the cold reservoir. |
| c | The engine is able to perform a net amount of useful work, such as pumping water from a well, during each cycle. |
| d | The engine can transfer heat from a cold object to a hot object. |
| e | More than one of the above statements are true. |
Question
7 of 20
What is the most accurate statement concerning Gauss's law?
| a | Gauss's law provides a quantitative relationship between the electric field established and the quantity of charge present when two point charges form a dipole. |
| b | Gauss's law provides a quantitative relationship between the scalar nature of electric force and the vector nature of electric flux. |
| c | Gauss's law provides a quantitative relationship between electric charge and the electric field associated with the electric charges enclosed on the surface of a three-dimensional object like a sphere. |
| d | Gauss's law uses superposition to estimate the scalar difference between lines of electric flux entering or leaving a closed two-dimensional surface. |
| e | More than one of the statements (a, b, c or d) are accurate. |
Question
8 of 20
If the electric field is "E" at a distance "d" from a point charge, its magnitude will be 2E at a distance______
| a | d/4. |
| b | d/2. |
| c | d/?2. |
| d | d ? 2. |
| e | 2d. |
Question
9 of 20
Two protons close to each other are released from rest and are completely free to move. After being released, which statement(s) is/are accurate?
| a | Their speeds gradually decrease to zero as they move apart. |
| b | Their speeds gradually increase as they move apart. |
| c | Their accelerations gradually increase as they move apart. |
| d | Their accelerations gradually decrease to zero as they move apart. |
| e | More than one of the statements (a, b, c or d) are accurate. |
In: Physics
Baird Company has provided the following 2018 data: Budget Sales $ 517,000 Variable product costs 186,000 Variable selling expense 48,000 Other variable expenses 2,700 Fixed product costs 15,800 Fixed selling expense 24,300 Other fixed expenses 2,000 Interest expense 620 Variances Sales 8,300 U Variable product costs 4,100 F Variable selling expense 2,100 U Other variable expenses 1,200 U Fixed product costs 300 F Fixed selling expense 440 F Other fixed expenses 170 U Interest expense 150 F Required a. & b. Prepare a budgeted and actual income statement for internal use. Separate operating income from net income in the statements. Calculate variances and identify them as favorable (F) or unfavorable (U) by comparing the budgeted and actual amounts determined. (Select "None" if there is no effect (i.e., zero variance).)
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In: Accounting
1a. If a 10^-2 dilution of a culture yields 150 colonies when 0.5 ml is spread on a plate, how many colonies will grow on a plate that receives 0.1 ml of the same dilution?
1b. How many CFU per ml are present in a sample if 0.2 ml of a 10^-5 dilution grew 220 colonies?
1c. How many colonies do you expect when 0.4 ml of a 10^-7 dilution of a culture containing 10^9 CFU per ml is plated onto nutrient media?
In: Biology
1) Suppose one force vector is 100 N at theta= 45 degrees, and a second force vector is 75 N at theta =123 degrees both with respect to the positive x-axis. What is a third force that would cause zero net force if all forces are acting on the same mass particle?
2) Suppose one force vector is 150 N at theta = 45 degrees, and
a second force vector is 172 N at theta =
300 degrees both with respect to the positive x-axis. What is a
third force that would cause zero net force if all forces are
acting on the same mass particle?
In: Physics
The Optical Scam Company has forecast a sales growth rate of 20
percent for next year. Current assets, fixed assets, and short-term
debt are proportional to sales. The current financial statements
are shown here:
| INCOME STATEMENT | |||||
| Sales | $ | 31,700,000 | |||
| Costs | 26,426,900 | ||||
| Taxable income | $ | 5,273,100 | |||
| Taxes | 1,845,585 | ||||
| Net income | $ | 3,427,515 | |||
| Dividends | $ | 1,371,006 | |||
| Addition to retained earnings | 2,056,509 | ||||
| BALANCE SHEET | |||||||
| Assets | Liabilities and Equity | ||||||
| Current assets | $ | 7,330,000 | Short-term debt | $ | 5,389,000 | ||
| Long-term debt | 7,291,000 | ||||||
| Fixed assets | 20,566,000 | ||||||
| Common stock | $ | 959,000 | |||||
| Accumulated retained earnings | 14,257,000 | ||||||
| Total equity | $ | 15,216,000 | |||||
| Total assets | $ | 27,896,000 | Total liabilities and equity | $ | 27,896,000 | ||
a. Calculate the external funds needed for next
year using the equation from the chapter. (Do not round
intermediate calculations.)
External financing needed
$
b-1. Prepare the firm’s pro forma balance sheet
for next year. (Do not round intermediate
calculations.)
| BALANCE SHEET | |||||||
| Assets | Liabilities and equity | ||||||
| Current assets | $ | Short-term debt | $ | ||||
| Fixed assets | Long-term debt | ||||||
| Common stock | $ | ||||||
| Accumulated retained earnings | |||||||
| Total equity | $ | ||||||
| Total assets | $ | Total liabilities and equity | $ | ||||
b-2. Calculate the external funds needed.
(Do not round intermediate calculations.)
External financing needed
$
c. Calculate the sustainable growth rate for the
company based on the current financial statements. (Do not
round intermediate calculations. Enter your answer as a percent
rounded to 2 decimal places, e.g., 32.16.)
Sustainable growth rate
%
In: Finance
3) Consider a very (infinitesimally!) thin but massive rod, length L (total mass M), centered around the origin, sitting along the x-axis. (So the left end is at (-L/2, 0,0) and the right end is at (+L/2,0,0) Assume the mass density λ (which has units of kg/m) is not uniform, but instead varies linearly with distance from the origin, λ(x) = c|x|.
d. In the limit of large z what do you expect for the functional form for gravitational potential? (Hint: Don’t just say it goes to zero! It’s a rod of mass M, when you’re far away what does it look like? How does it go to zero?) What does “large z” mean here? Use the binomial (or Taylor) expansion to verify that your formula does indeed give exactly what you expect. (Hint: you cannot Taylor expand in something BIG, you have to Taylor expand in something small.)
e. Can you use Gauss’ law to figure out the gravitational potential at the point (0, 0, z)? (If so, do it and check your previous answers. If not, why not?)
In: Physics
In: Economics
chemistry
please I need report for lap experiment :
1- testing salt for cations
2- testing salt for anions
3- titration
hint:
please send copy to my email
[email protected]
In: Chemistry
Complete the following dihybrid crosses. Draw out the Punnett for the F1 generation and the F2 generation.
a. phenotypic ratio in the F1
b. phenotypic ratio in the F2
c. genotypic ratio in the F1
d. genotypic ratio in the F2
In: Biology
ArrayStack:
package stacks;
public class ArrayStack<E> implements Stack<E>
{
public static final int CAPACITY = 1000; // Default
stack capacity.
private E[] data; //Generic array for stack
storage.
private int top = -1; //Index to top of stack./***
Constructors ***/
public ArrayStack()
{
this(CAPACITY);
}
//Default constructor
public ArrayStack(int capacity)
{
// Constructor that takes
intparameter.
data = (E[]) new
Object[capacity];
}
/*** Required methods from interface ***/
public int size()
{
return (top + 1);
}
public boolean isEmpty()
{
return (top == -1);
}
public void push(E e) throws
IllegalStateException
{
if(size() == data.length)
{
throw new
IllegalStateException("Stack is full!");
}
data[++top] = e;
}
public E top()
{
if(isEmpty())
{
return
null;
}
return data[top];
}
public E pop()
{
if(isEmpty())
{
return
null;
}
E answer = data[top];
data[top] = null;
top--;
return answer; }
}
Recall: In the array based implementation of the stack data type, the stack has a limited capacity due to the fact that the length of the underlying array cannot be changed. In this implementation, when a push operation is called on a full stack then an error is returned and the operation fails. There are certain applications where this is not useful. For example, a stack is often used to implement the \undo" feature of text editors, or the \back" button in a web browser. In these cases, it makes sense to remove the oldest element in the stack to make room for new elements. A similar data structure, called a leaky stack is designed to handle the above type of situation in a dierent manner. A leaky stack is implemented with an array as its underlying storage. When a push operation is performed on a full leaky stack, however, the oldest element in the stack is \leaked" or removed out the bottom to make room for the new element being pushed. In every other case, a leaky stack behaves the same as a normal stack. Write an implementation of the leaky stack data structure. Your class should be generic and implement the following public methods: push, pop, size, and isEmpty. Your class must also contain at least two constructors: one where the user does not specify a capacity and a default capacity of 1000 is used, and one where the user does specify a capacity.
Hint: The following is a skeleton of the class to get started (You will have to fill in the missing implementations of the abstract methods from the Stack interface):
public class LeakyStack implements Stack {
public static final int DEFAULT = 1000;
private E[] stack; private int size = 0;
private int stackTop = -1;
public LeakyStack()
{
this(DEFAULT);
}
public LeakyStack(int c);
public void push(E e);
public E pop();
public boolean isEmpty();
public int size(); }
In: Computer Science
Please look at the use of commercials and the use of commercials to advertise to children.
Make sure you articulate some of the ethical issues you discover in commercials that target children.
In: Psychology
Consider the titration of a 20.0mL sample of 0.105M HC2H3O2 with 0.125M NaOH. Determine each of the following. a) Initial pH b) the volume of added base required to reach the equivelence point c) the pH at 5.0 mL of added base d) the pH at one-half of the equivelence point e) the pH at the equivelence point f) ph after adding 5.0ml of base beyond the equivalence point
In: Chemistry
A) What are the expected annual cash flows of opportunity A for years 3 to 12? (Note: Your answer should be expressed in units of millions of dollars.)
Expected annual cash flow = $___ million
B) What are the expected cash flows of opportunity B for years 11 to 20? (Note: Your answer should be expressed in units of millions of dollars.)
Expected annual cash flow = $____ million
C) Suppose we calculate the NPV of each opportunity by discounting the expected cash flows. Assume a discount rate of 12% per year for opportunity A, and 20% per year for opportunity B. What is the NPV of each opportunity? (Note: Your answer should be expressed in units of millions of dollars.)
NPV opportunity A = $____ million
NPV opportunity B = $____ million
In: Finance