With appropriate illustration/equation (if any), give your comments on the truthfulness of the following statements:
1)The color of radiated photons can be varied by adding impurities into a semiconductor.
With appropriate illustration/equation (if any), give your comments on the truthfulness of the following statements: 1)The...
With appropriate illustration/equation (if any), give your comments on the truthfulness of the following statements: a) Live in the fast lane for slowing ageing and staying slim
Give the major organic product
from each of the following reactions (including any appropriate
stereochemistry):
1. (10) Give the major organic product from each of the following reactions (including any appropriate stereochemistry): HBr H20 2 ) O 3 2) H 2O2 1) BH 3 2) NaOHH H20 2 CH ,OFH 3 heat CH3 Br NaOCH 3
1. State if each of the following statements is true or not, and BRIEFLY give your rea- soning. (3 sentences maximum for each question) (d) By using a panel data set one can control for time-invariant unobserved attributes of the members of the cross section, which are correlated with explanatory vari- ables. (3 marks) (e) For FE estimator to be consistent, the idiosyncratic errors u must be homoskedas- tic. (3 marks) (f) By using ", robust" option in Stata, the...
1.
give an appropriate systematic (IUPAC) name for each of the
following compounds.
2. for each of the following reactions involving carboxylic
acid derivatives, give the expected product. If no reaction is
expected, write "no reaction". You may assume that any needed
acid/base catalysts are present.
ive an appropriate systematic (IUPAC) name for each of the following compounds. Hold 2. For each of the following reactions involving carboxylic acid derivatives, give the expected product. If no reaction is expected, write...
1. State if each of the following statements is true or not, and BRIEFLY give your rea- soning. (3 sentences maximum for each question) (a) The 2SLS estimator cannot have a larger asymptotic bias than OLS. (3 marks) (b) Hausman test for overidentification has a x2 distribution asymptotically with a degree of freedom that is equal to the number of exogenous variables in the data. (3 marks) (c) Proxy variable and instrumental variables can sometimes be used interchangeably (3 marks)...
keporT For any equations that are written, label each equation so that it is clear which observation it represents. 1. Define the term Lewis base and give rwo examples. Are your examples possible ligands Why 2. Provide a table for the observations recorded in Part 1. If a colo or why not? r change was observed after adding HCl or water, provide a balanced chemical equation showing the reaction that occurred. 3. For Pa rt 2, create a table showing...
Consider the following differential equation Note: For each part below you must give your answers in terms of fractions (as appropriate), not decimals (a) The above difterential equation has a singular point at-0. If the singular point at -0 is a regular singular point, then a power series for the solution y) can be found using the Frobenius method. Show that z-0 is a regular singular point by caliculating p/a)- 2(2) Since both of these functions are analytic at -0...
Problem 1 (20 points). For each of the following statements, either give a (short) proof to show that it 1. Let G- (V,E) be a directed graph. Let s E V. During a BFS run on G starting from s, vertex vis 2. Let G-(V,E) be a directed graph. Let e (u,v) E E. During a DFS nun on G, edge e is a cross 3. Let G (V,E) be a directed graph without negative cycles. Let e e E...
Consider the following differential equation Note: For each part below you must give your answers in terms of fractions (as appropriate), not decimals (a) The above differential equation has a snaar point at x 0 . It the singular point at x-0 is a regular singular point, then a power series for the solution y(x) can be lound using the Frobenius method. Show that x = 0 is a regular sigar point by calculating: xp(x) = y(x) = Since both...
Consider the following difterential equation Note: For each part below you must give your answers in terms of fractions (as appropriate), not decimals (a) The above differential equation has a singular point at z-0.I the singular point at z-0 is a regular singular point, then a power series for the solution y)can be found using the Frobenius method. Show that z-0is a regular singular point by calculating: zr(z) = 2g() Since both of these functions are analytic at z-0 the...