Natalie is thinking of buying a van that will be used only for business. The cost of the van is estimated at $36,500. Natalie would spend an additional $2,500 to have the van painted. In addition, she wants the back seat of the van removed so that she will have lots of room to transport her mixer inventory as well as her baking supplies. The cost of taking out the back seat and installing shelving units is estimated at $1,500. She expects the van to last about 5 years, and she expects to drive it for 200,000 miles. The annual cost of vehicle insurance will be $2,400. Natalie estimates that at the end of the 5-year useful life the van will sell for $7,500. Assume that she will buy the van on August 15, 2019, and it will be ready for use on September 1, 2019.

Natalie is concerned about the impact of the van’s cost on her income statement and balance sheet. She has come to you for advice on calculating the van’s depreciation.

Q1. Determine the cost of the van.

Q2. Prepare three depreciation tables for 2019, 2020, and 2021: one for straight-line depreciation (similar to the one in Illustration 9-10), one for double-declining balance depreciation (Illustration 9-14), and one for units-of-activity depreciation (Illustration 9-12). For units-of-activity, Natalie estimates she will drive the van as follows: 15,000 miles in 2019; 45,000 miles in 2020; 50,000 miles in 2021; 45,000 miles in 2022; 40,000 miles in 2023. Recall that Cookie Creations has a December 31 year-end

Q3. What impact will the three methods of depreciation have on Natalie’s balance sheet at December 31, 2019? What impact will the three methods have on Natalie’s income statement in 2019?

Match the following with Straight Line, Double Declining, or Units of Activity

Lowest amount of Net income

Lowest amount of stockholders' equity

lowest net book value

greatest amount of net income

greatest amount of stockholders equity

greatest book value

Creating a Kilometer to Miles Converter

Graphical User Interaction is the way of our world today as we know it. This week you will have an opportunity to design and develop perhaps your first GUI app.

Lab Assignment Objectives

1. Understand the basics of tkinter GUI development.
2. Based on an informal application specification be able to develop a tkinter GUI program that contains one or more Label widgets.
3. Be able to prompt user for input to a GUI application using a messagebox.
4. Obtain user input into a GUI application that can be used for event driven selection.
5. Be able to develop a tkinter GUI program that supports event-based widgets.
6. Develop a tkinter GUI program that maintains application state using a Canvas widget and/or a Frame widget to pack other widgets.

Understand the Application

For this GUI app you will create a kilometer to miles distance converter. Specifically we will write a class that will implement converting distances in kilometers to miles.

Implement a GUI app that contains:

• a text entry for the user to provide a kilometer input
• two buttons labeled "Convert" and "Quit"

Invoking the app, the user will be able to supply a kilometer value into the kilometer entry widget prompt.

When the user clicks the first button, Convert, the kilometers to miles conversion result will be displayed in an information dialog box. When the user clicks the second button, Quit, the app closes.

The Program Specification

Write a program that converts distances in kilometers to miles. The task for this lab is to develop an Object Oriented GUI application as a class that encapsulates the implementation of converting distances in kilometers to miles. Display the result in an info dialog box.

Testing Specification

Create an instance of the Kilometer Converter GUI class to demonstrate your app.

Input Error Checking: Validate user Input into the entry widget (i.e. a valid kilometer value). Do check that the button clicked performs the correct action (i.e. the convert button invokes the callback function for the conversion, the quit button closes the app).

Test Run Requirements: Provide a screenshot of your GUI program console display.

Hybrid cars are touted as a "green" alternative; however, the financial aspects of hybrid ownership are not as clear. Consider the 2014 Edsel 550h, which had a list price of $5,500 (including tax consequences) more than the comparable Edsel 550. Additionally, the annual ownership costs (other than fuel) for the hybrid were expected to be $470 more than the traditional sedan. The EPA mileage estimate was 26 mpg for the hybrid and 18 mpg for the traditional sedan.

a. Assume that gasoline costs $3.80 per gallon and you plan to keep either car for six years. How many miles per year would you need to drive to make the decision to buy the hybrid worthwhile, ignoring the time value of money? (Do not round intermediate calculations and round your answer to nearest whole number, e.g., 32.) Miles per year: ???

b. If you drive 17,500 miles per year and keep either car for six years, what price per gallon would make the decision to buy the hybrid worthwhile, ignoring the time value of money? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) Price per gallon $ ??

c. Gasoline costs $3.80 per gallon and you plan to keep either car for six years. How many miles per year would you need to drive to make the decision to buy the hybrid worthwhile? Assume the appropriate interest rate is 10 percent and all cash flows occur at the end of the year. (Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32.) Miles per year: ??

d. If you drive 17,500 miles per year and keep either car for six years, what price per gallon would make the decision to buy the hybrid worthwhile? Assume the appropriate interest rate is 10 percent and all cash flows occur at the end of the year. (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) Price per gallon $??

(Using C++ create a Car Instrument Simulator)

Car Instrument Simulator

Create the following classes: Car, Odometer, FuelGauge.

The Car class allows for the instantiation of a Car object.

The Car object will contain (via composition) an Odometer object, and a FuelGauge object.

The Car object will also include "make", "model", and "color" as string properties (instance variables).

In the Car constructor method, you will create a FuelGauge object, passing 15 as an argument into the FuelGauge constructor indicating the number of gallons.

In the Car constructor method, you will create an Odometer object, passing 0 and the address of the FuelGauge object as arguments to the Odometer constructor, indicating the number of miles driven and the address of the FuelGauge object respectively.

The Car class will have a "drive(int miles)" method.

The Odometer object will contain a pointer to a FuelGauge object.

The Odometer object will contain a "milesDriven" instance variable.

The Odometer object will have an "incrementMileage()" method.

The implementation of the Odometer incrementMileage method will be such that if the fuel level is greater than zero, the Odometer increments its mileage instance variable by 1. Also, at every interval of GAS_MILEAGE (a constant that specifies the miles per gallon), and if the FuelGauge's fuelLevel is greater than zero, the Odometer will call the decreaseFuelLevel() method on the FuelGauge object.

The FuelGauge object will have a "decreaseFuelLevel()" method.

The FuelGauge object will contain a "fuelLevel" instance variable.The FuelGauge object will have a "getFuelLevel()" method that returns the current value of the fuelLevel instance variable.

The FuelGauge object will have a "decreaseFuelLevel(int gallons)" method.

The implementation of the FuelGauge decreaseFuelLevel method will be such that the FuelGauge decrements the fuelLevel instance variable by the specified number of gallons. Do not decrease the fuelLevel to a negative value.

The implementation of the Car "drive(int miles)" method will be such that it has a loop wherein...

while you've driven less then the number of miles specified by the "drive" method parameter value (make it 500) and the fuel level is greater than zero,call the incrementMileage method on the Odometer object.

When the car stops driving because it has run out of fuel, display the number of miles driven.

Deliverables:

7 files: a .h file for each class, a .cpp file for each class, and one .cpp file for your main function.

A medical cyclotron used in the production of medical isotopes
accelerates protons to 6.5 MeV. The magnetic field in the
cyclotron is 1.2 T.
a. What is the diameter of the largest orbit, just before the protons
exit the cyclotron?
b. A proton exits the cyclotron 1.0 ms after starting its spiral
trajectory in the center of the cyclotron. How many orbits
does the proton complete during this 1.0 ms?

imagine mixing 25.0 ml of 0.10 M acetic acid (Ka=1.8*10^-5) with 25.0 ml of 0.10 M sodium acetate and determine a) The initial pH of the buffer b) pH of 20.0 ml sample of buffer with 1.0 ml of 0.10M Hal added c) pH of another 20 mL sample of buffer with 1.0 ml of 0.10 M MaOH added

20 mL of 4.0 M acetone + 10 mL of 1.0 M HCl + 20 mL of 0.0050 M I₂

If the reaction is zero order in I₂, approximately how long would it take for the I₂ color to disappear at the temperature of the reaction mixture 20 mL of 4.0M acetone + 10 mL of 1.0 M HCl + 10 mL 0f 0.0050M I2 + 10 mL H2O .

A chemist decided to try and recrystallize (purify) quinidine from acetone solvent. The solubility of quinidine in acetone is 1.0 g dissolves in 3.0 mL of hot acetone and 100 mg dissolves in 1.0 mL of cold acetone. If he started with 0.35 g impure quinidine, what is the minimum amount of solvent he should use to recrystallize the impure solid? Is acetone a good choice of solvent?