Please use python.
Step a: Create two DataFrames df1 and df2 from the following two tables that hold student scores. Each DataFrame has four rows and three columns.

Step b: Join the two DataFrames into df3 so that it only includes the students who appear in both tables. Print df3.

Step c: Set the column 'Name' as the index of df3 using df3.set_index() function. Print the updated df3. You can learn from https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.set_index.html.

Step d: Show the average score of each student in df3.

Research any literature/articles that address globalization and its challenges in the context of management…..Discuss in specific terms the challenges and how they are or can be overcome and their respective applicable solutions. Highlight the strategic approaches that managers develop and implement to gain a sustainable competitive advantage. Is globalization a greater challenge or threat to dynamic organizational structures than static organizational structures? Elaborate how you could device a workable method to resolving the challenges or threats. Provide logically-connected organizational management leaders who have made history in this regard.

A 100.0 m rod with a diameter of 3.0mm has a charge of 1004.0C. What is the approximate electric field 2.0mm from the surface of the rod, not near either end?

A) 9.0*10¹¹ r N/C

B) - 9.0*10¹¹ r N/C

C) - 5.2*10¹³ r N/C

D) 5.2*10¹³ r N/C

The answer is D, I am not sure how they got that answer, can you please explain and show your work. Thanks in advance

You are exploring a distant planet. When your spaceship is in a circular orbit at a distance of 630 km above the planet's surface, the ship's orbital speed is 5500 m/s . By observing the planet, you determine its radius to be 4.48×10^6 m. You then land on the surface and, at a place where the ground is level, launch a small projectile with initial speed 13.6 m/s at an angle of 30.8∘ above the horizontal. If resistance due to the planet's atmosphere is negligible, what is the horizontal range of the projectile? Please explain process

A PC store sells many types of computers. The PC can have either 16 or 8 gigabytes of memory.

The quality of the PCs can be either New, Refurbished, or Dented.

The price list is given as follows:

Memory size/Status New Refurbished Dented

16 gigabytes 849.99 729.99 609.99

8 gigabytes 699.99 579.99 439.99

Determine the price of a given PC dependent on the user inputs. The sale tax is 9.25% for each PC.

User input can only be 8 or 16 for memory size and 'N', 'R', or 'D' for quality (upper-case). The input quantityt should be 0 or positive.

If any user input is not correct, display an error message and skip all calculation.

All currency amount should be displayed with 2 digits in decimal fraction.

Here are several separate program sample runs. There is No need to use loop for repetition.

Enter the memory size of the PC (8 or 16 gigabytes): 16

Enter the quality of the PC (N for New, R for Refurbished, or D for Dented): N

Enter PC quantity want to buy: 2

The item price is $1699.98

The sale tax is $157.25

The total bill is $1,857.23

----------------------

Enter the memory size of the PC (8 or 16 gigabytes): 8

Enter the quality of the PC (N for New, R for Refurbished, or D for Dented): R

Enter PC quantity want to buy: 3

The item price is $1739.97

The sale tax is $160.95

The total bill is $1900.92

----------------------

Enter the memory size of the PC (8 or 16 gigabytes): 15

Invalid memory size!

----------------------

Enter the memory size of the PC (8 or 16 gigabytes): 8

Enter the quality of the PC (N for New, R for Refurbished, or D for Dented): A

Invalid PC quality!

----------------------

Enter the memory size of the PC (8 or 16 gigabytes): 8

Enter the quality of the PC (N for New, R for Refurbished, or D for Dented): (user hit Tab key)

Invalid PC quality!

----------------------

Enter the memory size of the PC (8 or 16 gigabytes): 16

Enter the quality of the PC (N for New, R for Refurbished, or D for Dented): R

Enter PC quantity want to buy: -2

Invalid PC quantity!

[C++ PROGRAMING]

Determine Kc for the reaction (justify all your calculations):

½ N2(g) + ½ O2(g) + ½ Br2(g) NOBr(g)

From the following information at T=298 K

2NO(g) O2(g) + N2(g) Kc = 2.1 x 10^30

NO(g) + ½ Br2(g) NOBr(g) Kc = 1.4

What is the molality of a solution that has been prepared by mixing 53.6 g of sodium chloride with 464 g of water?

1) A 150.0 mL solution was prepared by mixing 100.0 mL of 1.00 M HONO (Ka = 4.5 x 10–4 ) with 50.0 mL of 1.00 M NaNO2 . Calculate the pH, [HONO], and [NO2–], once equilibrium has been established.

2). What is the pH, [OH^–], [HF], [F^–], and the percent ionization of a solution prepared as 0.50 M HF ? (HF: K_a = 7.2 x 10^-4)

50 M HF ? (HF: K_a = 7.2 x 10^-4)

3. Consider the reaction:

CO(g) + H₂O(g)    CO₂(g) + H₂(g)

At 800 K the equilibrium constant, K = 16.

If your reaction vessel initially contains 0.050 M CO, 0.050 M H₂O, 0.30 M CO₂ and 0.30 M H₂. What are the equilibrium concentrations of all of the components?

4. What is the pH of a saturated solution of Mn(OH)₂ ( K_sp = 2.0 x 10^–13)?

Mn(OH)₂ (s)   Mn²⁺ (aq) + 2 OH^-(aq)     

5) The weakest strong acids is Nitric acid, with a K_a = 240. The % ionizations of strong acids are rounded off to 100%. Calculate the % ionization of 0.100 M nitric acid without rounding.

Why is good documentation important in your research reports? Explain why recommendations should be specific and actionable. Provide at least two examples of recommendations that meet this standard.

Simulate a D-Flip Flop on Xilinx using Verilog HDL | Behavioral Modelling

PS: please include the simulation screenshot and output and the code

please write a paper that argues either for or against government intervention in foreign trade. Describe both the benefits and the problems that can occur when governments interfere with foreign trade, describing the different barriers that governments can impose and also the steps they sometimes take to encourage international trade.

What is the current thinking on the little hierarchy problem in light of a potential Higgs mass above 120 GeV? A few years ago, at least, I remember various phenomenologists saying that this at least makes life rather difficult for the MSSM.

• A migrating fish would be rapidly transferring substances across cell membranes. These substances would include sodium, water, carbon dioxide, oxygen, and steroids. Which of those would be most likely to be moved via active transport? Why?

Goldstein's Classical Mechanics has a puzzling few sentences in his discussion of orbits.

Referring to the case of orbit where the energy is low enough for the orbit to be bounded, he says :"This does not necessarily mean that the orbits are closed. All that can be said is that they are bounded, contained between two circles of radii r1 and r2 with turning points always lying on the circles."

Doesn't "bounded" automatically mean "closed"? The object cannot escape from the attractive force and hence returns over and over. At least, that is my understanding of the terms. Wikipedia says "The orbit can be open (so the object never returns) or closed (returning), depending on the total energy (kinetic + potential energy) of the system." But it also says "Orbiting bodies in closed orbits repeat their paths after a constant period of time." So the only way out I see is if a closed orbit is a special case of non-precessing bounded orbit.