Devise a straightforward method that allows you to calculate (a) the speed and (b) the angular momentum of an electron in the nth Bohr orbit. Your expressions should contain the number of the orbit, n, and constants.

Using the formula that you devised, calculate the speed of an electron and the angular momentum of an electron in the tenth Bohr orbit. Units for answers are m/s for speed and J/s for angular momentum.

Write a program in C that reads prompts the user for a positive integer and then prints out that number in base 16, base 8 and base 2.

Audit - audit procedures

After getting the lists and totals of inventory with market value or value-at-cost of greater than $10,000, what audit procedure would you complete next? What risk and management assertion are you addressing with your proposed audit procedure?

Stocks A and B have the following historical returns:

(a) Calculate the average rate of return and standard deviation of returns (as percents) for each stock during the 5-year period. (Round your standard deviations to two decimal places.)

stock A average rate of return %

standard deviation %

stock B average rate of return %

standard deviation %

(b) Assume that someone held a portfolio consisting of 50% of stock A and 50% of stock B and that the average annual realized returns and past volatility of each stock are unbiased estimators of their expected returns and future volatility. What is the portfolio's expected return and the volatility of next year's returns (as percents)? The correlation between the returns of the two stock is 90.83%. (Round your answers to two decimal places.)

expected return %

volatility %

Refer to the article, ‘the Human Condition’, to discuss the time that modern humans have existed versus the time of the ‘modern world’. -- Global Sociology

The following frequency distribution shows the price per share for a sample of 30 companies listed on the New York Stock Exchange.

Compute the sample mean price per share and the sample standard deviation of the price per share for the New York Stock Exchange companies (to 2 decimals). Assume there are no price per shares between 29 and 30, 39 and 40, etc.

[Computer Science Question]

Compare and Contrast the trade-offs associated with using C++ in comparison to Python. How do the characteristics of the languages impact the amount of memory each language occupies. How do memory considerations impact each languages real world implementations?

In this assignment you must submit TWO different programs both of which accomplish the same thing but in two different ways.

Using NetBeans, create a program that prompts the user for a sentence. Then the program displays the position of where the lowercase letter 'a' appears everywhere in the sentence. Here is a sample of the input and output:

Enter a sentence
for the night is dark and full of terrors.
The lowercase letter 'a' appears at character position 18
The lowercase letter 'a' appears at character position 22

Write TWO different programs that accomplishes the above using different techniques. Take a look at the JavaDocs for the String methods available to you. For example, one way is you might use the 'charAt()' method while your second program uses 'indexOf()'.

please send me the solution in java as soon as possible.

Free-body Diagrams - 01

Due in 21 hours, 49 minutes

A free-body diagram is a major tool we use to help analyze problems involving forces. To create a free-body diagram, place a dot on the paper to represent the object (or objects) of interest and then draw all of the forces acting on that body. The force vectors are drawn with their tail on the dot. A major step in any of our force problems is correctly identifying all of the forces acting on an object. There are three possible free-body diagrams shown at the top of the problem. Select the appropriate free-body diagram for each of the situations listed below. If there are two items mentioned, select the free-body diagram for the first object mentioned (book, block, you, ball).

A [One arrow pointing down]
B [One arrow pointing down, on down, one left, one right]
C [One arrow pointing down, one pointing up]

A

B

C
  A book is sitting stationary on a table.

A

B

C
  A block is being pulled by a string to the right at a constant speed. There is friction between the block and the table.

A

B

C
  You are standing stationary on a flat floor.

A

B

C
  A block is hanging from a string and is not accelerating.

A

B

C
  A ball is flying through the air. Ignore air resistance (assume projectile motion).

Incorrect. Tries 1/10 Previous Tries

Transactions; Financial Statements

On July 1, 2019, Pat Glenn established Half Moon Realty. Pat completed the following transactions during the month of July:

1. Opened a business bank account with a deposit of $25,000 from personal funds.
2. Purchased office supplies on account, $2,530.
3. Paid creditor on account, $1,600.
4. Earned sales commissions, receiving cash, $25,850.
5. Paid rent on office and equipment for the month, $5,070.
6. Withdrew cash for personal use, $8,000.
7. Paid automobile expenses (including rental charge) for the month, $2,430, and miscellaneous expenses, $1,160.
8. Paid office salaries, $3,050.
9. Determined that the cost of supplies on hand was $850; therefore, the cost of supplies used was $1,680.

Required:

1. Indicate the effect of each transaction and the balances after each transaction. For those boxes in which no entry is required, leave the box blank. If required, enter negative values as negative numbers.

repare an income statement for July.

Feedback

2. An income statement reports the revenues and expenses. When revenues are larger than the expenses, the difference is net income.

Prepare a statement of owner's equity for July. If an amount is zero, enter "0".

Feedback

3. Follow Example Exercise 1-5. Recall that the statement of owner's equity considers beginning owner capital, additional investments of the owner and net income for the year and withdrawals to calculate the ending capital. The net income from the income statement is needed to complete the statement of owner's equity.

Prepare a balance sheet as of July 31.

Calculate the hydronium ion concentration and the pH at the equivalence point when 65.0 mL of 0.4000 M NH3 is mixed with 35.0 mL of 0.7429 M HCl.

Ka=5.6x10-10

Health and fitness

1. background/introduction

2. Etiology

3. Epidemiology

4. Signs and symptoms

5. Treatment modalities

6. Medical, Pharmacological and Nursing management

7. summary/conclusion