4 charges are fixed to the corners of a square of side .53 cm. Charge 1 of -1 uC is fixed to the top left corner. Charge 2 of -2uC is fixed to the top right corner, charge 3 of 3uC is fixed to the bottom left corner , and charge 4 of -4uC is fixed to the bottom right corner. a) find the magnitude and direction of the electric field at the center of the square b) find the potential at the center c) find the electric potential energy of the system.

Based on the following companies in the U.S stock market .

(i) STI

(II) SBUX

(III) EBAY

(IV) BMO

(V) CM

(VI) FR

(VII) VMI

(VIII) SKX

(IX) HPQ

(X) VIOT

what are the following for each holding in the portfolio ?

(a) Each company profile

(b) Ticker

   (c) Name

   (d) key ratios

Based on the following companies in the U.S stock market .

(i) AMD

(II) CSCO

(III) TGT

(IV) FCX

(V) IBM

(VI) MSFT

(VII) NKE

(VIII) ORCL

(IX) PEP

(X) PG

what are the following for each holding in the portfolio ?

(a) Each company profile

(b) Ticker

   (c) Name

   (d) key ratios

Based on the following companies in the U.S stock market .

(i) AMD

(II) CSCO

(III) TGT

(IV) FCX

(V) IBM

(VI) MSFT

(VII) NKE

(VIII) ORCL

(IX) PEP

(X) PG

what are the following for each holding in the portfolio ?

(a) Each company profile

(b) Ticker

   (c) Name

   (d) key ratios

What is one significant way the Renaissance represents "rediscovery" of classical antiquity? Please identify your example as well as the author/artist/architect responsible for it, and explain exactly how it was inspired by antiquity. For example, was your author imitating a certain literary style from the ancient world, or discussing a subject germane to it?

if you were the state epidemiologist and it was suspected that smoke from the local toy factory was connected to adverse health outcomes among the town’s residents, what type of cohort study would you conduct to further investigate this concern? Why? What limitations exist in your choice of study? Remember to cite sources where necessary.

In python 3 please:

This program extends the earlier "Online shopping cart" program. (Start working from your Program 7).

(1) Build the ShoppingCart class with the following data attributes and related methods. Note: Some can be method stubs (empty methods) initially, to be completed in later steps.(3 pt)

● Parameterized constructor which takes the customer name and date as parameters

● Attributes

• ○ customer_name (string)

• ○ current_date (string)

• ○ cart_items (list)

● Methods

○ add_item()

■ Adds an item to the cart_items list. Has parameter ItemToPurchase. Does not return anything.

○ get_cost_of_cart()

■ Determines and returns the total cost of items in the cart. Has no parameters.

○ print_total()

• Outputs total of objects in the cart.

• If the cart is empty, output this message:

SHOPPING CART IS EMPTY

○ print_descriptions()

■ Outputs each item's description.

Ex. of print_total() output:

John Doe's Shopping Cart - February 1, 2016
Number of Items: 8

Nike Romaleos 2 @ $189 = $378
Chocolate Chips 5 @ $3 = $15
Powerbeats 2 Headphones 1 @ $128 = $128

Total: $521

Ex. of print_descriptions() output:

John Doe's Shopping Cart - February 1, 2016

Item Descriptions
Nike Romaleos: Volt color, Weightlifting shoes Chocolate Chips: Semi-sweet
Powerbeats 2 Headphones: Bluetooth headphones

1

Enter the customer's name:
John Doe
Enter today's date:
February 1, 2016

Customer name: John Doe
Today's date: February 1, 2016

OUTPUT SHOPPING CART
John Doe's Shopping Cart - February 1, 2016
Number of Items: 8

Nike Romaleos 2 @ $189 = $378
Chocolate Chips 5 @ $3 = $15
Powerbeats 2 Headphones 1 @ $128 = $128

OUTPUT ITEMS' DESCRIPTIONS
John Doe's Shopping Cart - February 1, 2016

2

(6) Implement Add item to cart menu option. (2 pts)

Ex:

ADD ITEM TO CART
Enter the item name:
Nike Romaleos
Enter the item description:
Volt color, Weightlifting shoes
Enter the item price:
189
Enter the item quantity:
2

The challenge for companies to be competitive is to reach international markets. To explore foreign market, 10 countries were selected from each of four global regions. The data on the cost associated with importing a cargo of goods by sea transport in these countries (in US$ per container) was collected.

1. What is the response variable in this experiment?                                                                 

2. Name the factor in this experiment and the number of levels of the factor.                         

3. Complete the ANOVA table. (Full marks will be awarded for showing the calculations).   

ANOVA

4. At the 0.05 level of significance, is there evidence of a difference in the mean cost of importing across the four global regions? (Show all steps and the needed calculations of hypothesis testing)     (4   marks)