1. (a) I‚ III‚ and IV are correct. II is not correct. To explain III‚ de Broglie’s equation states l = h/(mv)‚ so nl = nh/(mv) = 2pi(r). Where: l = wavelength‚ v = velocity of electron‚ n = some positive integer‚ r = distance of electron from center‚ m = mass of electron. Solve‚ get mvr = L = nh/2pi. (b) The current wave mechanical model for the atom states that there are an integer number of wavelengths in every standing integer number (n). 2. (a) The first shell electrons in Lithium are
Premium
Throughout the period 1801-1817‚ the government was ruled by the Jeffersonian Republican party‚ whereas the Federalist Party began to slowly fade away from public view. The Jeffersonian Republican party‚ led by Thomas Jefferson‚ professed to favor a weak central government through the support of more states’ rights‚ "...that the states are independent... to...themselves...and united as to everything respecting foreign nations." (Document A). On the other hand‚ the Federalist Party‚ previously led
Premium Thomas Jefferson Democratic-Republican Party James Madison
certain practices by some labor organizations‚ their officers‚ and members have the intent or the necessary effect of burdening or obstructing commerce by preventing the free flow of goods in such commerce through strikes and other forms of industrial unrest or through concerted activities which impair the interest of the public in the free flow of such commerce. • The National Labor Relations Board (hereinafter called the "Board") created by this Act prior to its amendment by the Labor Management Relations
Premium United States Congress President of the United States Bill Clinton
| | | | Review and Recommendations | Tylenol Scare of 1982 | Prepared by: March 19‚ 2012 Professor Douglas Greenwood Prepared by: March 19‚ 2012 Professor Douglas Greenwood Contents Executive Summary 3 The Industry 5 The Organization 6 The Ethical Issue/Problem 8 Key Stakeholders 10 Event Aftermath 12 Recommendations 14 Conclusion 17 Executive Summary Law and Ethics often refers to the concepts of moral and legal rights‚ and focuses on one
Premium Johnson & Johnson Tylenol
WRITTEN SECTIONS OF AP WORLD HISTORY TEST In the free-response section of the AP World History Exam‚ all students are asked to answer three constructed-response (essay) questions: Part A — An essay that requires comparison and analysis of up to ten “documents” which can include texts‚ pictures‚ graphs‚ maps‚ etc.—DOCUMENT BASED QUESTION (DBQ) Part B — An essay question that deals specifically with continuity and change over time (covering at least one of the periods in the concept outline)
Premium Question Africa Sub-Saharan Africa
One day when I was in the fourth grade‚ we had just finished a free response test on a story we were supposed to read last night. The next day‚ my teacher had completed grading all the test and he had noticed that two of the papers had were the exact same‚ their names were Danny and Ishmael. But Danny was absent today so the teacher called Ishmael to the front of the classroom and asked him if he and Danny cheated off of each other’s test. Ishmael first lied and said‚ “I don’t know how we have the
Premium Morality The Lottery
For Lab 1‚ my partner and I will be demonstrating the law in which connects the period of the pendulum‚ expressed as T‚ to the length of the string‚ expressed a L. The system the lab will be based on will include a pendulum with a weight of W suspended at a fixed point by the string with a variable length of L and an angle theta to be measured using a protractor. The variable T will be measured as the period of time needed for the weight of the pendulum to swing back and forth once. For part 1 of the
Premium Classical mechanics Experiment Pendulum
Group The part of the potential group consisting of members who actually join. Most potential members do not feel the need to become part of the actual group (and pay the dues associated with membership) when they can reap the benefits of the group for free. In an attempt to curb this‚ a group might have selective benefits for due-paying members.
Premium Political party Office
The victory of the United States against Great Britain in the Revolutionary war was‚ and continues to be one of the biggest upsets militarily. The Superior British army seemed to have every advantage‚ however the United States experienced key political‚ diplomatic‚ and military advantages that led to the success of the Revolution. Politically the colonies had gone through many key changes in ideology that gave the idea of revolution the traction that it would need to gain public support. The people
Premium American Revolutionary War United States American Revolution
TUTORIAL 1 1. Convert the following temperatures to their values on the Fahrenheit and Kelvin scales: (a) the boiling point of liquid hydrogen‚ –252.87°C (b) the temperature of a room at 20°C. 2. A constant-volume gas thermometer is calibrated in dry ice (–80.0°C) and in boiling ethyl alcohol (78.0°C). The respective pressures are 0.900 atm and 1.635 atm. (a) What value of absolute zero does the calibration yield? (b) What pressures would be found at the freezing and boiling points of water
Premium Temperature Gas Pressure