Please, solve me these Qs quickly ..I have Exame. Provide a numerical evaluation of the density...

Please, solve me these Qs quickly ..I have Exame.

Provide a numerical evaluation of the density of states for electrons in a bulk material with m_e =0.06m₀ and with an energy 100 meV above the conduction band edge. Express your answer in units of eV^-1 cm^-3.
Estimate the total number of states present per unit energy in a microscopic a =1μm InAs cube. The effective electron mass m_e =0.023m₀ and the electron energy of interest is 100meV

Expert Solution

density of states for electrons = (100 * 1.6 * 10^-19)/(0.06 * 9.11 * 10^-31)

= 2.927 * 10¹⁴ eV−1 cm−3

total number of states present per unit energy = 10^-6 * 100 * 1.6 * 10^-19/(0.023 * 9.11 * 10^-31)

= 7.636 * 10⁸

genius_generous answered 2 years ago

Can you please tell me what more information I need to provide to solve below problem?...

Can you please tell me what more information I need to provide to solve below problem? 1. Find out below using R Hints: Use iris dataset from R (built in data set in R) a) Create a new data frame called virginica.versicolor (that only contains these two species) the command I used: virginica.versicolor <- iris[iris$Species %in% c("versicolor", "virginica"), ] b) What is your null hypothesis regarding sepal lengths for the two species (virginica.versicolor) ? And what is your alternate hypothesis?...

It have a lot of error. please see it and solve it for me. run it...

It have a lot of error. please see it and solve it for me. run it please. Thank you a lot. #define MAXWORDLENGTH 20 #include <stdlib.h> #include <stdio.h> #include <string.h> #include "getline.inc" struct entry { char name[81]; }; struct entry part; struct tnode { char *name; int record_number; struct tnode *left; struct tnode *right; }; void lookup(struct tnode *root,char *s); void treeprint2(struct tnode *root,char *searchkey); int c; int n; FILE *stream; struct tnode *root, *tree(struct tnode *, char *, int),*dtree(struct...

Explain the major costs of insurance to society --------------- Please Solve As soon as Solve quickly...

Explain the major costs of insurance to society --------------- Please Solve As soon as Solve quickly I get you thumbs up directly Thank's Abdul-Rahim Taysir

Renewable Energy question: (PLEASE provide me with TYPED solution) * PLEASE TYPE YOUR SOLUTION **** I...

Renewable Energy question: (PLEASE provide me with TYPED solution) ********* PLEASE TYPE YOUR SOLUTION ************ I lost one question because I could not read the hand writing of the solution that somone provided, so please type yours. Thank you. #. Solar heat harvesting makes use of what three modes of heat distribution? How does each work?

Could you please give me step-by-step on how to solve this. Thank you! I believe that...

Could you please give me step-by-step on how to solve this. Thank you! I believe that the population proportion for 50% of the people who live in my neighborhood drive a mini van. I surveyed 40 people/houses in my neighborhood and found that only 19 drive mini vans. Use the significance level .10 to test the hypothesis.

Please solve it quickly as it is urgent AC and Refrigeration Electrical Systems  Write minimum...

Please solve it quickly as it is urgent AC and Refrigeration Electrical Systems  Write minimum four causes and four remedies against each fault/problem. Draw a table with two columns and five rows to write answer for each given fault. a).Refrigerator’s evaporator fan doesn’t work. b). Compressor motor trips again and again. c). Water cooler’s fan motor makes noise. d). Hermetic Compressor motor doesn’t start. e). Whole electricity goes off, upon turning “ON” the Split A/C unit.

please solve quickly. Waste heat from a chemical reactor is to run a boiler in a...

please solve quickly. Waste heat from a chemical reactor is to run a boiler in a Rankine power cycle. The working fluid in the cycle is water. The boiler generates steam which exits at 300 psia and 1200°F. The condenser in the cycle runs at 3 psia, producing a saturated liquid. The turbine and the pump can be considered adiabatic and reversible. Assume the pump is driven by the turbinea. a) Calculate the net work produced by the cycle, in...

Hello, Could you please provide me with the FORMULAS used to solve problem 20.5 (chapter 20/Accounting...

Hello, Could you please provide me with the FORMULAS used to solve problem 20.5 (chapter 20/Accounting Information Systems). The solution you have is the correct solution, but I need the formulas used. The Question: Rossco is considering the purchase of a new computer with the following estimated costs: initial system design:$54,000, hardware:$74,000,software:$35,000,one-time initial training:$11,000, system installation:$20,000 and file conversion:$12,000. A net reduction of 3 employees is expected with average yearly salary of $40,000.The system will decrease average yearly inventory by...

2) I would like to do a Marketing research on Macy company. Please provide me with...

2) I would like to do a Marketing research on Macy company. Please provide me with some information related to secondary data and primary data and what are the marketing problem in the marketing mix that I will have to research to solve for this company (Area of concern, area of improvement, eliminate and area of difficulty, etc. based on two items in the Marketing Mix (product, price, promotion, place).

How do I make a dictionary in Python language? Can somebody please provide me with an...

How do I make a dictionary in Python language? Can somebody please provide me with an example code of a Dictionary in Python Language? Thank you in advance.

Question